How to Loom Knit a Jellyfish Keychain: A Step-by-Step Guide for Beginners and Beyond
If you’ve ever wanted to combine the satisfying rhythm of loom knitting with an adorable, ocean-inspired craft project, making a jellyfish keychain is exactly the kind of project you need. These little sea creatures are endlessly charming — with their rounded bodies and flowing tentacles, they make perfect bag charms, gifts for friends, zipper pulls, and handmade accessories for anyone who loves the ocean. Best of all, this project works up quickly, uses minimal supplies, and is beginner-friendly while still being enjoyable for experienced loom knitters.
In this guide, you’ll find everything you need to know: the supplies list, detailed step-by-step instructions, tips for customization, and ideas for finishing your jellyfish keychain beautifully. Whether you’ve just picked up a loom for the first time or you’ve been knitting for years and want a fresh mini project, this tutorial will walk you through the entire process from start to finish.
Why Loom Knit a Jellyfish Keychain?
Before diving in, it’s worth appreciating why this particular project is such a great choice. Loom knitting is an accessible craft that doesn’t require the same level of coordination as traditional needle knitting. Because the loom holds your loops in place, you have both hands free to work the yarn, making it a wonderful option for children, people with arthritis or limited dexterity, and anyone who finds needle knitting frustrating.
A jellyfish keychain is small, which means it knits up fast — most people complete their first one within a couple of hours. The project also introduces you to knitting in the round, shaping, and basic finishing techniques like gathering and attaching tentacles. Once you’ve made one, you’ll find yourself wanting to make a whole ocean’s worth in different colors.
These also make wonderful handmade gifts. A small bag of jellyfish keychains in different colors would delight a child or a craft-loving friend. You can tailor the colors to match someone’s style, add googly eyes for a quirky look, or keep them elegant and minimal. The creative possibilities are genuinely wide open.
Supplies You’ll Need
Gathering your materials before you start will make the process smoother. Here’s what you’ll need to loom knit a jellyfish keychain:
Loom: A small round loom with at least 12 to 24 pegs works best for this project. A small flower loom, the mini round loom from sets like the Knifty Knitter, or any compact circular loom will do nicely. The smaller the loom, the tighter and more defined your jellyfish body will be.
Yarn: You’ll want a small amount of worsted weight yarn or DK weight yarn for the body. Metallic, shimmery, or sparkle yarn is an especially fun choice because it mimics the translucent, bioluminescent glow of real jellyfish. Cotton yarn also works well if you want a more structured, firm body. You’ll need a second color or the same color for the tentacles, which are made separately.
Loom pick or hook: This is the standard tool used to lift loops over the pegs on your loom. It comes with most loom sets or can be purchased separately.
Scissors
Tapestry needle or yarn needle: Used for weaving in ends and closing the top of the jellyfish body.
Polyfill stuffing: A small amount of polyester fiberfill or cotton stuffing will give your jellyfish body its rounded, three-dimensional shape.
Keychain ring: A standard split ring keychain works perfectly. You can find these at craft stores, hardware stores, or online in bulk.
Optional extras: Googly eyes, felt scraps, fabric glue or a hot glue gun for embellishing your jellyfish with a face. You might also want ribbon, thin satin cord, or different yarn textures to vary your tentacles.
Understanding the Basic Techniques
If you’re new to loom knitting, a quick overview of the main stitch used in this project will help you feel confident before you begin.
E-wrap (or twisted knit stitch): This is the most basic loom knitting stitch. You wrap the yarn around each peg in a continuous spiral, then use your pick to lift the bottom loop up and over the top of the peg, releasing it off the back. This creates a knit stitch. For a beginner, this is the stitch you’ll use for most of this project.
Flat knit stitch (U-wrap): Some knitters prefer this stitch because it creates a tighter, less stretched fabric. Instead of wrapping around the back of the peg, you lay the yarn horizontally across the front and knit it off. Either the e-wrap or flat knit works for this project — choose whichever feels more natural to you.
Knitting in the round: Because you’re using a circular loom, you’ll knit in continuous rounds rather than rows, which naturally creates a tube or dome shape — perfect for a jellyfish body.
Step-by-Step Instructions
Step 1: Cast On
Set up your small round loom. For a jellyfish that’s roughly the size of a golf ball (great for a keychain), use 12 to 18 pegs. If your loom has more pegs, you can skip every other one, or simply use a smaller loom.
To cast on using the e-wrap method, anchor your yarn by tying a slip knot and placing it on the anchor peg (or holding the tail between your fingers). Then wrap the yarn around each peg in a clockwise direction, going all the way around the loom until every peg has one loop. This is your cast on row.
Go around a second time, wrapping each peg again so that each peg now has two loops sitting on it. You’re ready to begin knitting.
Step 2: Knit the Body
Using your loom pick, go to the first peg and lift the bottom loop up and over the top of the peg, releasing it off the back. The upper loop stays on the peg. Move to the next peg and repeat. Work your way all the way around the loom. This completes one round.
Wrap the yarn around each peg again and knit off again. Continue in this manner, round after round, until your knitted tube measures approximately 2 to 2.5 inches in height. This creates the dome-shaped bell of the jellyfish. As you knit, you’ll notice the fabric naturally pulling down in the center of the loom, forming a cup or dome shape — this is exactly what you want.
If you want a rounder, fuller jellyfish body, knit a few extra rounds. If you want a flatter, disc-like jellyfish, fewer rounds will do the trick.
Step 3: Stuff the Body
Before you close the top of the jellyfish, pull the knitted fabric off the loom carefully — or, if your loom allows, leave it in place while you stuff. Take a small pinch of polyfill stuffing and tuck it gently into the interior of the knitted cup. You don’t need a lot — just enough to give the dome a soft, rounded shape. Overstuffing will make it look too round and balloon-like, while understuffing will leave it flat. Aim for something that looks like a small, plump mushroom cap.
Step 4: Close the Top
Now you’ll close off the open top of the jellyfish body. Thread a length of yarn onto your tapestry needle — this can be your working yarn or a separate piece. Run the needle through each live loop on the loom, picking them up one at a time as you remove them from the pegs. Go all the way around until you have all the loops threaded onto your yarn tail.
Pull the yarn tail firmly to gather the loops closed, drawing them tightly together at the top of the dome. This gathered closure should be snug and secure. Knot the yarn tail a couple of times to hold it in place, then use your tapestry needle to weave the tail through several stitches inside the dome and trim the excess.
Step 5: Attach the Keychain Ring
Before you close the top completely, or immediately after gathering, slip your keychain ring onto the gathered yarn before tightening. Alternatively, you can use a separate short length of yarn to attach the ring after the fact — thread it through the gathered top, loop it through the keychain ring, and knot it securely. A bit of extra reinforcement here is a good idea since keychains endure a lot of daily tugging and movement.
Make sure the ring is attached in a way that allows the jellyfish to hang naturally, with its dome on top and the flat gathered opening upward (which will be hidden by the tentacles you add next).
Step 6: Make the Tentacles
The tentacles are what really bring a jellyfish to life. There are several ways to make them, and you can mix and match techniques for a more textured, interesting look.
Method 1 – Simple yarn lengths: Cut 10 to 16 pieces of yarn, each about 6 to 8 inches long. Fold each piece in half and use a lark’s head knot (slip the folded loop through the bottom edge of the jellyfish body, then pull the two tails through the loop and tighten) to attach them all around the base of the dome. This creates a simple, fringe-like tentacle effect.
Method 2 – Twisted cords: Cut yarn lengths twice as long as you want your tentacles to be, then twist two strands together tightly until they naturally coil around themselves. Fold the twisted pair in half and it will twist around itself, forming a springy, curly tentacle. Attach these with lark’s head knots around the base.
Method 3 – Finger knitting: Finger-knit a short length of yarn for each tentacle, then attach them to the base. Finger-knitted tentacles have a slightly more structured, tubular look.
Method 4 – Crochet chains: If you know basic crochet, use a small hook to chain stitch 10 to 20 chains for each tentacle, then attach. These have a lovely, delicate texture.
For the most realistic jellyfish look, use a mix of long and short tentacles, and consider using slightly thinner yarn or embroidery floss for some of them. Ribbon curled around a pencil also makes gorgeous, spiral tentacles. Aim for anywhere between 8 and 16 tentacles total.
Step 7: Add a Face (Optional)
This step is entirely optional but wildly fun. A pair of small googly eyes glued to the front of the dome instantly transforms your jellyfish from a pretty abstract blob into a charming little character. Use fabric glue or a small dot of hot glue to attach the eyes. You can also embroider a tiny smile using a contrasting thread and your tapestry needle.
If you’re making these for children, embroidered features are safer than googly eyes, which can be a choking hazard for very small kids.
Tips for Customizing Your Loom Knit Jellyfish Keychain
One of the best parts of this project is how easily it adapts to different styles, colors, and skill levels. Here are some ideas for making your jellyfish uniquely yours.
Color combinations: Try ombre yarn or self-striping yarn for a body that transitions between colors on its own as you knit. Use contrasting tentacle colors for a bold, graphic look, or stick to a monochromatic palette for something more elegant.
Glow in the dark: Glow-in-the-dark yarn is widely available and makes a jellyfish that absolutely delights kids (and many adults). Pair it with regular white or pale blue yarn for an ethereal effect.
Sparkle and shimmer: Metallic thread blended with regular yarn, or sparkle yarn like Lion Brand’s Glitterspun, mimics the bioluminescence of deep-sea jellyfish beautifully. This is probably the easiest way to elevate your jellyfish from cute to stunning.
Size variations: Use a larger loom and bulkier yarn for a bigger jellyfish that could be a plush toy or bag charm rather than a keychain. Alternatively, use a very small loom and fingering weight yarn for a tiny, dainty charm that fits on a bracelet or earring hook.
Texture play: Mix different yarn textures for the tentacles — fuzzy eyelash yarn, smooth satin ribbon, curled metallic thread, and structured cotton all behave differently when they hang, creating a wonderfully varied fringe that moves and catches light.
Troubleshooting Common Issues
The body looks uneven or lumpy: This usually means inconsistent tension. Try to wrap each peg with the same amount of pressure throughout. Blocking (lightly misting with water and shaping, then allowing to dry) can help even out minor irregularities.
The top won’t close tightly: Make sure you’re threading the tapestry needle through every loop before pulling. If a few loops escape, you’ll end up with a gap. If this happens, use your needle to sew the gap closed with a few extra stitches.
The tentacles fall out: Lark’s head knots are quite secure, but if your yarn is slippery (like acrylic with a high sheen), the knots may loosen. Add a tiny drop of fabric glue to each knot once it’s in place to lock it permanently.
The jellyfish won’t hang straight: This is usually a stuffing issue. If the stuffing is uneven, redistributing it with your fingers while shaping the dome will help. Also make sure your keychain ring is attached to the very center of the gathered top.
Making a Whole Set: Ideas for Gifting and Selling
Once you’ve got the technique down, it’s easy to make these in batches. A set of jellyfish keychains in coordinating colors makes a wonderful gift — tuck three or four into a small drawstring bag or box with a handwritten tag for an artisan gift that looks far more impressive than the time it took.
If you sell handmade goods on platforms like Etsy or at craft fairs, jellyfish keychains are perennial bestsellers. Ocean themes are consistently popular, and the small size means low material costs. Consider offering customization — let buyers choose body color and tentacle colors, or offer a “mystery ocean bag” of assorted keychains. Bundling them with matching stitch markers or other small loom-knit accessories can increase the perceived value.
For children’s birthday party favors, a small pile of jellyfish keychains in bright colors is a creative, handmade alternative to the usual plastic trinkets. Parents genuinely appreciate thoughtful, crafted items, and kids love keychains.
Caring for Your Loom Knit Jellyfish Keychain
Most yarn jellyfish keychains can be hand washed gently in cool water if they get dirty. Press out excess water without wringing (which distorts the shape), then lay flat or hang to dry. Avoid machine washing, as the agitation can felt wool yarn and misshape the stuffing. If you used polyfill stuffing, it dries relatively quickly and holds its shape well.
Keep in mind that because these are keychains and subject to daily handling, some light pilling or wear is normal over time. Choosing a yarn that’s labeled as “pill resistant” or using cotton can extend the life of your jellyfish.
Final Thoughts
Loom knitting a jellyfish keychain is one of those projects that perfectly balances simplicity and charm. The technique is accessible enough for a first-time loom knitter, the materials are affordable and easy to find, and the result is something genuinely delightful — a small, handmade object that makes people smile every time they reach for their keys.
Whether you make one for yourself, a dozen for gifts, or a whole ocean-themed collection to sell or display, this project is a wonderful reminder of why handmade crafts bring so much joy. There’s something deeply satisfying about taking a skein of yarn, a small loom, and a little time, and ending up with a tiny, three-dimensional creature with flowing tentacles and a personality all its own.
So gather your supplies, pick your colors, and start wrapping. Your first jellyfish is waiting to come to life.
