How to Crochet a Worry Worm Keychain – Cute, Easy & Functional Tutorial

If you’ve been scrolling through craft communities lately, you’ve probably noticed worry worms popping up everywhere. These sweet little crocheted creatures have become one of the most beloved small amigurumi projects around, and it’s easy to see why. They’re quick to make, satisfying to finish, and genuinely useful — not just as keychains, but as fidget tools, friendship gifts, bag charms, and anxiety aids for children and adults alike. When you add a keyring to the mix, you get something that travels with you everywhere, a tiny crocheted companion that fits right in your pocket.

This tutorial will walk you through everything you need to know to crochet your very own worry worm keychain from start to finish. Whether you’re a complete beginner or an experienced crocheter looking for a fun quick project, this guide has got you covered. We’ll go over the materials you’ll need, the stitches involved, step-by-step instructions for the body and details, and tips for finishing and attaching your worm to a keyring. By the end, you’ll have a charming little amigurumi piece that makes a wonderful gift or a sweet treat for yourself.

What Is a Worry Worm?

Before we dive into the pattern, let’s talk about what a worry worm actually is. Originally rooted in the concept of worry dolls — small figures used in Guatemalan tradition to take away a child’s worries overnight — worry worms are a modern crocheted version of that same comforting idea. The concept is simple: when you’re feeling anxious or overwhelmed, you can hold your worry worm and transfer your worries to it. For children especially, this can be a tangible, tactile way to manage big feelings.

But worry worms have taken on a life of their own in the crafting world too. People crochet them in every color imaginable, attach googly eyes, give them little antenna made from yarn, and turn them into keychains, zipper pulls, bag decorations, and more. They’ve also become popular as random acts of kindness — leaving a little worry worm somewhere for a stranger to find with a note explaining its purpose. There’s something genuinely touching about that.

As a keychain, the worry worm is especially practical. You can fidget with it while waiting in line, squeeze it during a stressful moment, or simply smile every time you pull out your keys.

Materials You’ll Need

One of the best things about this project is how minimal the supply list is. You probably already have most of what you need at home.

Yarn: Any worsted weight (size 4) acrylic yarn works perfectly for this project. Acrylic is durable, easy to work with, and comes in hundreds of colors. For a small worm, you only need a small amount — literally just a few yards. This is a perfect stash-busting project. You can use a single color, two alternating colors for stripes, or even a variegated yarn that creates its own color pops as you crochet.

Crochet Hook: A 3.5mm (E) or 4.0mm (G) hook works well with worsted weight yarn and gives you a tight fabric that holds stuffing securely. If you’re using a lighter yarn, size down your hook accordingly.

Safety Eyes: 6mm or 8mm safety eyes give your worm its personality. Black safety eyes are classic and cute, but you can also find colored ones if you want something more whimsical.

Fiberfill Stuffing: A small amount of polyfill or fiberfill stuffing. You really don’t need much — just enough to give your worm a satisfying, squeezable body.

Yarn Needle: For weaving in ends and, if you want, embroidering a little mouth.

Stitch Marker: This keeps you on track in the round and saves a lot of confusion.

Split Ring or Lobster Claw Keyring: These are inexpensive and available at any craft or hobby store. You’ll attach this at the end to turn your worm into a keychain.

Optional: Black embroidery floss or yarn for a mouth, small piece of wire or pipe cleaner for antennas, or ribbon for a bow.

Stitches and Abbreviations Used

This pattern uses basic crochet stitches. If you know how to make a magic ring, single crochet, and increase, you’re already equipped to make this worm.

MR — Magic Ring (also called a magic circle)

SC — Single Crochet

INC — Increase (2 single crochets in the same stitch)

DEC — Decrease (also called an invisible decrease: insert hook into front loop of next stitch, then front loop of stitch after that, yarn over and pull through both loops, yarn over and pull through remaining two loops)

SL ST — Slip Stitch

CH — Chain

BLO — Back Loop Only

FLO — Front Loop Only

All rounds are worked in a continuous spiral unless otherwise noted. Use a stitch marker to track the beginning of each round.

Pattern Notes

This pattern creates a worm that is approximately 4 inches long and just under an inch wide when stuffed. If you’d like a bigger or smaller worm, you can adjust by going up or down in hook size or yarn weight.

The head is worked first, the body follows in a tube shape, and then the tail is tapered. Each segment of the body can be done in alternating colors to create the classic striped look that most crocheted worry worms have.

Step-by-Step Instructions

Part 1: The Head

Start with your first color of yarn.

Round 1: Make a magic ring, then work 6 SC into the ring. Pull the tail to close the ring. (6 stitches)

Round 2: INC in each stitch around. (12 stitches)

Round 3: SC 1, INC repeat around. (18 stitches)

Round 4: SC 2, INC repeat around. (24 stitches)

Rounds 5–7: SC in each stitch around. (24 stitches)

Before moving on, this is the moment to attach your safety eyes. Place them between Round 4 and Round 5, about 5 to 6 stitches apart. Getting the eye placement right at this stage is important because once you stuff and close the head, you won’t be able to add or adjust them safely. Take a moment to hold your work up and check the placement from the front. Once you’re happy, push the safety eye shanks through the fabric and secure the washers on the inside.

If you prefer to embroider eyes instead of using safety eyes — which is a great choice if you’re making this for a young child under three — you’ll do that after the head is complete.

Round 8: SC 2, DEC repeat around. (18 stitches)

Round 9: SC 1, DEC repeat around. (12 stitches)

Now stuff the head firmly with fiberfill. Use a small amount at a time and push it in with the eraser end of a pencil or a chopstick. You want the head to feel plump and round without being so tight that it distorts the stitches.

Round 10: DEC around. (6 stitches)

Slip stitch to close, or continue working down into the body without closing if you prefer a seamless transition.

Part 2: The Body Segments

The body of your worry worm is what gives it that satisfying segmented look. You’ll be working a simple tube, but changing colors every few rounds creates the illusion of distinct body segments.

If you want stripes, cut your first color (leaving a 6-inch tail to weave in) and join your second color. Alternatively, you can carry both colors along the inside of the tube to reduce ends.

Rounds 1–3 of each segment: SC in each stitch around. (12 stitches)

Then switch colors. Repeat this three-round sequence for as many segments as you like. Most worry worms have between four and six segments, which gives a finished length of about 3 to 4 inches for the body. More segments mean a longer worm.

To change colors, simply stop before the last yarn over of your final single crochet in the round. Drop your old color and pull through with your new color. That’s it — no need to cut unless you prefer to weave in ends.

A classic worry worm looks great in two alternating colors — think coral and yellow, green and white, purple and lavender, or whatever your heart desires. Variegated yarn is also magical here because it does all the color work for you.

Part 3: The Tail

The tail tapers to a gentle point, giving your worm that cute finished look.

Round 1: SC 2, DEC repeat around. (9 stitches)

Round 2: SC in each stitch around. (9 stitches)

Round 3: SC 1, DEC repeat around. (6 stitches)

Add a small pinch of stuffing to the tail at this point if it needs it. The body tube should already feel fairly firm if you stuffed it as you went (which is optional but recommended to avoid a limp worm).

Round 4: DEC around until 3 stitches remain.

Fasten off, leaving a tail. Thread your yarn needle and weave the tail through the remaining stitches to close the hole. Pull snugly and weave in the end securely so it doesn’t poke back out.

Part 4: Adding the Face Details

Your worm already has eyes if you used safety eyes. Now it’s time to add a little personality.

Mouth: Thread a length of black embroidery floss or thin black yarn onto your yarn needle. Create a simple curved stitch between the eyes and just below them — a single curved “U” shape works beautifully for a happy expression. You can also make a straight stitch for a more neutral or sleepy look.

Antennas: Cut two small pieces of wire (about 2 inches each) or use thick yarn. If using yarn, twist a strand of yarn tightly around itself or fold it in half and knot it to create a tiny coil. Insert the antenna base into the top of the head between two stitches and secure with a dab of fabric glue or by threading the end back through the head and knotting it inside. If using pipe cleaners, bend the tip into a small spiral before inserting.

Blush marks: You can add small circles of pink blush (the kind you’d use on your face or a children’s makeup crayon) to the cheeks for an extra adorable touch. This is completely optional but really brings the little face to life.

Part 5: Attaching the Keyring

Now comes the functional part — turning your worry worm into a keychain.

Cut a small length of yarn, about 6 inches. Thread it through the top of your worm’s head, right at the tippy top of Round 1 where your magic ring closed. Pull both ends even.

Thread both yarn tails through the small end of a lobster claw keyring or a split ring. Tie a double knot close to the ring, then tie another knot for security. Thread the tails back through the top of the head using your yarn needle and weave them in well so nothing shows.

Alternatively, you can use a small jump ring and add the keyring to that, which gives your worm a slightly more polished, finished look. Use needle-nose pliers to open the jump ring, thread it through the yarn loop at the top of the worm’s head, then close it again. Attach your keyring to the jump ring.

If you prefer, a small piece of chain can be used between the worm and the keyring for a little extra drape and movement.

Color Ideas and Variations

Part of the joy of this project is the endless creative freedom in choosing your colors and customizing each worm.

Rainbow worm: Work each two-round segment in a different color of the rainbow for a vibrant, joyful effect.

Seasonal worms: Orange and black for Halloween, red and green for Christmas, pastels for spring and Easter, blue and white for winter.

Galaxy worm: Use a dark navy or purple as your base and add metallic or sparkle yarn for segments that shimmer.

Spooky worm: Use lime green, purple, and black with a little felt bow and googly eyes in red.

Nature-inspired: Earthy tones like terracotta, sage green, cream, and rust for a boho look.

You can also crochet tiny accessories for your worm — a little yarn bow, a crocheted hat made from just a few rounds of single crochet, or even a small crocheted heart that your worm can “hold” with a piece of wire twisted into arms.

Tips for a Polished Finish

Weave in your ends thoroughly. Nothing undermines a cute little amigurumi piece like a stray yarn tail poking out. Use your yarn needle to run the tail through several stitches in different directions, then trim close to the fabric.

If your color changes are visible at the sides, you can always orient your worm so that the color change line runs along the back or bottom.

Block your worm if the fabric looks uneven. For acrylic yarn, a light steam over a damp cloth can smooth out any bumps.

If you’re gifting this as a worry worm (rather than just a keychain), consider attaching a small tag that explains the tradition. You can write something like: “Meet your worry worm! Hold it tight and share your worries. Your worm will carry them so you don’t have to.” It makes the gift feel intentional and meaningful.

How to Use Your Worry Worm Keychain

Hang it from your keys, your backpack zipper, your purse handle, or a lanyard. Let it ride along with you through the day. When stress hits — a long checkout line, a tricky moment at work, a restless minute before a presentation — reach for your worm, squeeze it, roll it between your fingers, and take a breath.

There’s real science behind fidget tools. Having something small and tactile to interact with can help redirect anxious energy, interrupt repetitive thoughts, and provide a grounding sensation. Your worry worm keychain doesn’t just look adorable — it genuinely serves a calming function.

For children, worry worms are especially effective. The ritual of naming the worry and handing it to the worm makes abstract anxiety feel manageable. Some parents crochet a worry worm specifically for a child who struggles with bedtime fears, school anxiety, or general nervousness, and the results are often quietly remarkable.

Making Multiples as Gifts or for Craft Fairs

Once you’ve made one worry worm, you’ll want to make ten. They’re that satisfying and that fast — an experienced crocheter can complete one in about an hour, and even a beginner can finish one in a quiet afternoon. They make extraordinary gifts because they’re small, personal, handmade, and genuinely useful.

If you’re selling at craft fairs or on Etsy, worry worm keychains are consistent bestsellers. People are drawn to them immediately, and the combination of cuteness and function makes the purchase feel justified. Pricing them between $8 and $15 depending on your market and materials is standard.

Make a batch in different colors and let buyers choose their favorite. You might also offer to customize — asking customers what their favorite colors are and making a worm that feels personally theirs. That small customization goes a long way.

Final Thoughts

The worry worm keychain is one of those projects that gives back more than you put in. You invest an hour of relaxed, enjoyable crochet time and end up with something handmade and heartfelt — something that travels the world in someone’s pocket and offers comfort in quiet moments. Whether you’re making it for yourself, for a loved one, or for a stranger who might find it and need it on a hard day, there’s real care woven into every stitch.

If this is your first amigurumi project, welcome to one of the most joyful branches of the crochet world. And if you’re a seasoned maker looking for a satisfying quick project, we hope this little worm delivers everything you’re looking for. Happy hooking!