Rainbow Jellyfish Amigurumi Crochet Pattern: A Bright, Cheery Companion You Can Crochet Today
If you’ve ever fallen in love with a soft, rainbow-splashed sea creature perched on a shelf or dangling from a nursery wall, you’re not alone. A Rainbow Jellyfish amigurumi is the perfect project for crocheters who want to practice color changes, learn how to shape a cute but sturdy bell, and create a toy that’s as cheerful as a summer afternoon. In this post I’m sharing a complete, easy-to-follow Rainbow Jellyfish Amigurumi Crochet Pattern that works up quickly, looks adorable, and makes a fantastic handmade gift or decoration.
Whether you’re sewing a kid-friendly friend or decorating a craft corner, this pattern is designed to be approachable for beginners who’ve mastered basic single crochet and color changes, yet flexible enough for seasoned crocheters who want a rainbow twist on a classic amigurumi jellyfish. The key to the magic here is a bright, multi-color bell (the jellyfish’s head) and a cascade of soft, wavy tentacles that ripple in the breeze.
Why a rainbow jellyfish pattern is such a winner
– It’s bright and joyful: Rainbow colorways catch the eye and lift spirits.
– It’s a great practice project: You’ll work color changes, stitches, and shaping in a compact, forgiving form.
– It makes a memorable gift: A rainbow jellyfish is cheerful, soft, and safe for kids (with a few safety considerations).
– It’s easy to customize: From color order to number of tentacles, you can tailor the look to suit the recipient or decor.
Before you begin
This pattern uses US crochet terminology. If you prefer UK terms, you can swap sc for dc and a few other basics. I’ve kept the instructions straightforward so you can adapt easily, but a little note on gauge and materials will help you get the best results.
Materials
– Yarn: Six to seven rainbow shades of worsted weight yarn (colorful, bright, and soft). You’ll need small amounts of each color for the bell, plus a light contrast color for accents if you like. Typical rainbow order could be red, orange, yellow, green, blue, indigo, violet.
– Crochet hook: Size that matches your yarn weight. For worsted weight, a 3.5 mm (E) to 4.0 mm (F) hook is common.
– Stuffing: Polyfill or a similar soft stuffing. Lightly stuff to keep the bell plump but not squashed.
– Optional safety features: Safety eyes (small black buttons) or you can embroider eyes with black yarn or embroidery thread for a softer, kid-safe look.
– Tapestry needle for weaving in ends.
– Scissors
– Optional bead or small weight: A tiny bead, fishing line, or a tiny labeled weight can help stabilize the jellyfish if you want to hang it as a decoration.
Yarn substitution and tension
– If you choose a lighter yarn such as DK, you’ll likely need to adjust hook size slightly to keep the stitches tight so the form doesn’t gape. If you go heavier than worsted, use a bigger hook but keep the tension snug so the layers stack neatly.
– The jellyfish pattern relies on tight single crochet stitches (to keep the stuffing from showing through). If your stitches are loose, consider going down a hook size or tightening your work a bit.
Pattern abbreviations (US terms)
– ch: chain
– sl st: slip stitch
– sc: single crochet
– inc: increase (2 sc in the same stitch)
– dec: decrease (sc2tog or similar)
– MR: magic ring
– rnd: round
– FO: fasten off
Pattern overview
The Rainbow Jellyfish is built in two main parts:
– The bell (the jellyfish’s head), formed in a series of rounds with color changes to produce the rainbow look.
– The tentacles, which hang from the bottom edge of the bell and give the jellyfish its characteristic drippy, wavy silhouette.
A note on size
This pattern yields a jellyfish about 6–8 inches tall from the top of the bell to the tip of the longest tentacles, depending on your yarn weight and hook size. If you’d like a larger or smaller jellyfish, adjust the hook size or the number of rounds in the bell. You can also switch the lengths of the tentacles to create a longer, more dramatic effect or a shorter, cuter look.
The Rainbow Jellyfish Amigurumi Crochet Pattern
The bell (head) – rainbow colors
The bell is worked in the round from the center outward, then rounded to form a soft dome. You’ll crochet a few rounds in one color, then switch to the next color in rainbow order, continuing this color choreography to create a bright, striped jellyfish head.
Starting color A (your first rainbow color)
1) MR: 6 sc in ring. (Total stitches in this round: 6)
2) Round 2: inc in every stitch around. (Total stitches: 12)
3) Round 3: (sc, inc) around. (Total stitches: 18)
4) Round 4: (2 sc, inc) around. (Total stitches: 24)
5) Round 5: (3 sc, inc) around. (Total stitches: 30)
6) Round 6: (4 sc, inc) around. (Total stitches: 36)
From here you’ll make the bell taller and keep a comfortable, rounded dome. You can continue with rounds of single crochet in color A (36 stitches around) for 4–6 rounds to create the first “band” of color in your rainbow.
7) Round 7–10: sc around in color A. (36 stitches)
8) Change to color B (second rainbow color). Round 11: sc around (36)
9) Round 12: sc around (36)
Continue the color-changing roll:
– Round 13: color C, sc around (36)
– Round 14: color D, sc around (36)
– Round 15: color E, sc around (36)
– Round 16: color F, sc around (36)
You’re creating the rainbow stripes across the dome. Each stripe is 1–4 rounds depending on how bold you want each color block to be. If you’d like more stripes, simply add more rounds of sc in the same color or add another color block as you like.
Now you’ll shape the bell to create a soft dome without a visible seam. The idea is to continue working in the round and decrease gradually so the top of the bell remains slightly closed, letting the opening be at the bottom for tentacles.
Decrease shaping rounds (to help form the bell’s dome)
– Round 17: (4 sc, dec) around. This reduces you from 36 to 30 stitches.
– Round 18: (3 sc, dec) around. Now around 24 stitches.
– Round 19: (2 sc, dec) around. Now around 18 stitches.
– Round 20: (1 sc, dec) around. Now around 12 stitches.
– Round 21: (dec) around. Now around 6 stitches.
– Round 22: dec around. Now around 3 stitches.
– Round 23: dec around. Now 1–2 stitches. Fasten off leaving a long tail for attaching to tentacles or sewing up lightly if needed.
At this point, you’ll need to decide how you want to manage the opening for tentacles. A simple approach is: don’t close the bottom too tightly. Instead, stop at a stage where you have a clean opening for the tentacles to be anchored around the rim. Leave the opening slightly curved so the bell looks natural, then weave in any ending yarn and keep the opening accessible for the tentacles.
If you’d prefer a sturdier bottom edge to anchor the tentacles, you can do a light “rim” around the bottom opening:
– With a color of your choice, attach along the bottom edge of the bell (the opening you’ve left), ch 1, and sl st evenly around to form a small, decorative border. This step adds a neat binding and gives you a stable edge to sew the tentacles into.
Tentacles
Tentacles are the jellyfish’s signature. They drape and wave in an underwater breeze. For a rainbow jellyfish, you’ll create several tentacles in a few different colors to echo the rainbow above.
You can choose an even number of tentacles (for symmetry) or an odd number for a quirkier look. A good starting point is 6–8 tentacles.
Tentacle instructions (one tentacle)
1) In color X (a rainbow color different from the bell), chain 60–70 stitches (adjust to your desired length). You want a chain long enough for a graceful droop, but not so long that it overwhelms the bell.
2) Starting from the second chain from the hook, single crochet across the chain to create a sturdy strand.
3) When you reach the end, cut your yarn leaving a tail for attaching the tentacle to the ball’s bottom rim. Do not fasten off the tail yet.
4) Attach the tentacle around the bottom edge of the bell by evenly distributing the tentacles—roughly around every 6th stitch around the bottom rim if you placed a rim. Use a tapestry needle or the same hook to weave the tail back into the tentacle or into the bell’s interior to secure.
Alternate tentacle technique for a wavier look
– After you’ve crocheted a long tentacle, you can fold it into a soft wave by adding a simple ripple: start with the base of the tentacle attached, then along the length, insert the hook into alternating loops to create gentle curves, or use a few back-and-forth stitches (sc in a few alternating stitches, then skip a stitch, etc.) to add natural ripples. Repeat with multiple tentacles in varying colors so the jellyfish has a cascade of rainbow “dreads.”
Total tentacle count and length
– For a balanced look, use 6–8 tentacles each about 8–12 inches long when laid flat. If you’d like longer tentacles for a dramatic effect, just chain longer. Shorter tentacles give a cute, compact look.
Finishing touches
– Attach the eyes (if you’re using safety eyes) or embroider eyes. Place them on the bell, above halfway down the dome, to give your jellyfish a friendly face. If you want a simpler, kid-friendly option, embroider two small dots with black yarn or thread.
– Weave in all ends securely. If you’ve left a rim, you can tuck loose ends under the tentacles and secure with a few stitches to keep them from poking out.
– Optional: Add a small amount of posable weight inside the top of the bell (between the stuffing and the inner shell) for a slight tilt. This makes the jellyfish look more lifelike when displayed.
Colorway ideas and variations
– Classic rainbow: Red, orange, yellow, green, blue, indigo, violet across the bell with tentacles in rainbow shades to match or complement.
– Pastel rainbow: Use soft pastel tones for a gentler look—pink, peach, pale yellow, mint, baby blue, lavender.
– Monochrome rainbow: Pick one color family and run all the way from light to dark (pink shades or blue shades) for the bell, with contrasting white or gray tentacles.
– Metallic moments: Small accents of metallic gold or silver in a couple of stripes for a mermaid-like shimmer.
Care and washing
– Hand wash gently in lukewarm water and lay flat to dry. You can spot-clean the tentacles if they pick up dust. For a child’s toy, consider using a yarn that’s machine-washable or a fabric-safe dye to ensure durability.
Tips for perfect results
– Keep your tension consistent: Amigurumi benefit from tight stitching that prevents stuffing from showing through. If your stitches tend to be loose, switch to a smaller hook or tighten your grip a bit.
– Stuff gently: For a soft, plump bell, stuff lightly but evenly. Don’t overstuff, or your ridges will show and the rainbow bands won’t lay flat.
– Remember color changes: When changing colors, crochet the first stitch of the new color in the last stitch of the previous color (or finish the previous color with a standard color-change method) to keep the stripe clean and neat.
– Use a lifelike finish on the tentacles: If you want the tentacles to look silkier, you can lightly fringe them with a comb to separate the strands, giving a more “flowy” look.
– Safety sugar: If you’re giving this to a small child, consider leaving out safety eyes and instead embroider the faces with embroidery floss or thread to avoid choking hazards.
Pattern download and printable version
If you prefer a printable version of this pattern, I’ve included a tidy, printer-friendly layout that you can save as a PDF. The printable version keeps the same steps, with rounds clearly labeled and color-change tips laid out for easy reference as you crochet.
Color blending and color-change tips
– If you’re new to color changes in amigurumi, a good approach is: crochet a few rounds in color A, then switch to color B in the next round, ensuring you weave in the color-change tail along the inside of the piece. This keeps the outside clean and reduces visible yarn tails.
– When you switch colors, you can either finish the current round with a final stitch of color A and then start color B in the next stitch, or carry color B loosely along the interior edge until you’re ready to weave in the tails. Carrying colors can save you from weaving too many tails, but make sure you don’t create bulk on the outside.
Troubleshooting common issues
– Gaps along the rim at the bottom: Make sure your ring is snug when you begin and your rounds maintain tight tension. If needed, tighten the last few stitches slightly to decrease gaps.
– Tentacles don’t lay flat: Ensure their attachment point is evenly spaced and not twisted. If you want a more “flowy” look, you can twist each tentacle gently as you attach it so it drapes a little.
– Colors bleed onto each other at the edges: If your yarns bleed color onto the white or neighboring colors, consider using a color that doesn’t bleed or wash the yarn before you begin to set the color.
Final thoughts
A Rainbow Jellyfish Amigurumi Crochet Pattern isn’t just a craft project; it’s a little piece of sunshine you can hold in your hands. It’s ideal for introducing colorwork, basic amigurumi shaping, and the gentle art of creating soft, huggable toys. It’s quick enough to be a weekend project, yet flexible enough to become a favorite pattern you revisit with different color palettes, different sizes, or even different fabrics.
If you enjoyed this guide and want to experiment with new color arrangements, I’d love to hear about your rainbow combinations. Share your color palettes in the comments or post a photo of your finished jellyfish so we can celebrate your creativity together.
Would you like more variations? A few quick ideas to spice up future jellyfish projects:
– Use a variegated yarn for the bell to create a naturally striped rainbow without swapping colors as you go.
– Add glittery or metallic threads to a few rounds for a sparkling ocean vibe.
– Create a smaller “pocket jellyfish” that fits into a decorative bowl or alongside a bookshelf.
With a little practice, your Rainbow Jellyfish Amigurumi Crochet Pattern will become a go-to project you’ll want to repeat and customize again and again. The joy of crocheting is in the details—the color changes, the soft texture of the stuffing, and those sweet tentacles that seem to float on the air. Enjoy the process, and happy crocheting!
A few additional notes for SEO-friendly readers
– If you’re posting this pattern to a blog, consider crafting a short, keyword-rich intro paragraph that uses the exact phrase Rainbow Jellyfish Amigurumi Crochet Pattern a few times in natural language. For example: “This Rainbow Jellyfish Amigurumi Crochet Pattern is perfect for color lovers and beginner-to-intermediate crocheters alike. Learn to make a bright, stackable jellyfish with rainbow stripes and whisper-soft tentacles.” Then weave the same phrase, and its variations, throughout the body in a natural way.
– Include a detailed Materials section (as I’ve done) and a Pattern section with explicit steps and tips. Clear headings help crawlers segment content.
– Use alt text for images: If you add photos to your post, describe them with descriptive, keyword-rich alt text such as “Rainbow jellyfish amigurumi bell with rainbow stripes and hanging tentacles” to improve accessibility and search indexing.
If you’d like, I can tailor this pattern further to a specific yarn brand, weight, or color palette you have on hand, or I can convert the steps into a printable, line-by-line pattern so you can paste directly into a pattern card or a Google Doc for easy reference.
