A soft turquoise dome, a sleepy smile, and a few wavy tentacles swaying from a backpack strap can make an ordinary bag feel a little more personal. The crochet jellyfish keychain amigurumi brings that ocean charm to life with a rounded body, flowing tentacles, and tiny embroidered sea details, all without taking much time.
The basic shape is simple enough for anyone with beginner amigurumi skills, while the ocean details leave plenty of room to experiment. Try turquoise and white for an under-the-sea look, lavender and pink for something whimsical, or bright shades for a playful bag charm. Small embroidered bubbles, waves, shells, or stars can make the finished piece look like it swam straight out of the sea.
The project also uses very little yarn, so those small leftover balls sitting in your basket can finally become colorful jellyfish. After the first one, it’s easy to make more in different colors. Beginners get a small, manageable first project, and experienced crocheters get a quick, relaxing make.
Why You’ll Love the Ocean Jellyfish
Mini crochet is fun because the character comes to life so quickly. In just a few rounds, a small amount of yarn becomes a recognizable sea creature. The jellyfish pattern is:
- Small and portable
- Easy to customize
- A smart use for leftover yarn
- Made for bag charms
- A fun start to a sea-themed collection
- Easy to learn with basic skills
- Quick enough for a weekend project
- Simple to make in many colors
The tentacles are the most fun part. Make them straight, wavy, curly, short, or long, and every jellyfish ends up with its own personality.
Skill Level and Time
Difficulty: Beginner
Time: A quick weekend project
You should be familiar with:
- Magic ring
- Chain stitch
- Single crochet
- Increase
- Decrease
- Slip stitch
- Working in continuous rounds
- Basic sewing
If you’re new to amigurumi, the jellyfish is a good starter project for learning how to make a small stuffed shape.
Materials You’ll Need
Gather your supplies before you begin.
Yarn
- Main-color yarn for the body
- Contrasting yarn for the tentacles (optional)
- Small amount of black embroidery thread
- White yarn or thread for ocean details (optional)
Cotton yarn works well because it gives crisp stitches and holds small shapes nicely. Acrylic yarn also works and gives the finished charm a softer feel.
Tools
- Crochet hook suited to your yarn
- Polyester fiberfill
- Stitch marker
- Yarn needle
- Sharp scissors
- Keychain ring
- Small clasp or lobster claw
Optional Extras
- Tiny beads
- Extra embroidery thread
- Small decorative buttons
- Ribbon
Finished Size
Expect a jellyfish about 3–4 inches in size, depending on your yarn and hook.
For a smaller charm, use lightweight yarn and a small hook. For a larger, plumper jellyfish, use heavier yarn and a bigger hook. Keep in mind that a practical keychain should feel light in your hand, not heavy.
Pattern Notes
- Keep your stitches tight enough that the stuffing doesn’t show through.
- Place a stitch marker at the start of each round.
- Count your stitches regularly. On such a small piece, one missed stitch can change the shape.
- Don’t overstuff the body. The jellyfish should feel firm but not hard.
How to Crochet the Jellyfish Keychain
Knowing the construction first makes the steps easier to follow. The jellyfish has a rounded body with a small base, a few hanging tentacles, and simple facial features. Once those are done, you’ll add the ocean-themed embroidery and the keychain hardware. Use the video below as a visual guide alongside the written steps.
Step 1: Crochet the Jellyfish Body
Make a magic ring with your main yarn and work 6 single crochet into it. Pull the tail to close the ring tightly.
On the next round, begin increasing, then keep making even increases on each round after that so the piece grows into a flat, rounded circle. Once the circle reaches the width you want, work single crochet without increasing. The sides will start to rise into the jellyfish dome. Check the shape as you go.
Step 2: Shape the Dome
Keep working even rounds until the body is tall enough. The top should stay rounded, with the bottom curving slightly inward.
If the body looks too flat, add another round. If it looks too tall, pull out a round and check the proportions again. Small differences are fine and add character.
Step 3: Add the Stuffing
Once the body is tall enough, start stuffing with polyester fiberfill. Add small pieces at a time rather than pushing in one large clump, and spread the stuffing evenly toward the sides. Don’t pack it too tightly. The goal is a soft, smooth dome with no hollow spots.
Step 4: Close the Body
Begin decreasing evenly around the opening. If you notice empty spaces, add a bit more stuffing. Keep decreasing until the hole is small.
Fasten off, leaving a tail. Thread it on a yarn needle, weave it through the remaining stitches, and pull gently to close the opening neatly.
Step 5: Crochet the Tentacles
Now for the most iconic part. Make several chains with your contrasting yarn. The number of chains depends on how many tentacles you want: 6 to 8 give a fuller look, while 4 to 6 are enough for a simpler design. Make some shorter and some longer for extra movement.
Step 6: Give the Tentacles Ocean-Like Movement
For curly tentacles, work a couple of single crochet stitches into each chain. The extra stitches make the strand curl naturally. For thinner, more delicate tentacles, work back along the chain with slip stitches instead.
Experiment and choose the texture you like best. Keep the tentacles fairly thin so they don’t overpower a mini jellyfish.
Pro tip: Make the tentacles in slightly different lengths and textures. A little variation makes the jellyfish look softer and more natural than a perfectly symmetrical set.
Step 7: Secure the Tentacles
Arrange the tentacles around the bottom of the body, spacing them as evenly as possible. Place the longer ones in the middle and the shorter ones toward the sides. Check that every tentacle falls the way you want before sewing them all securely in place.
Step 8: Add the Face
Embroider two small eyes on the front of the body with black thread, then stitch a tiny smile below them. The expression can be happy, sleepy, surprised, or a little mischievous. A bit of pink yarn makes sweet cheeks.
For a kid-friendly charm, embroidered features are a safer choice than plastic safety eyes.
Adding Ocean Details
Here’s where the project becomes more than a simple jellyfish. Embroider tiny bubbles around the body with white or contrasting thread. Small circles read instantly as bubbles in the water.
Other embroidery ideas include:
- Tiny stars
- Waves
- Shell shapes
- Small dots
- Seaweed
- Little fish
Keep the details minimal. A few well-placed accents usually look better than a crowded design on such a small piece.
Create a Tiny Ocean Theme
If you make several jellyfish, give each its own underwater character. One could have blue tentacles with white bubbles, another could come in coral and peach, and a third in green and turquoise.
Round out a small ocean collection with mini crochet shells, starfish, seaweed, or fish. A quirky crochet fishbone keychain adds a fun twist to the set. Kids who love ocean crafts especially enjoy a themed group like that.
Attach the Keychain Hardware
Once the jellyfish is complete, make a sturdy loop at the top. Crochet a small chain and sew it securely to the body, then slide the metal keychain ring onto the loop. Pass the yarn through the connection a couple more times for extra support.
Give the ring a firm tug before clipping it to a bag, and reinforce the loop again if it shifts. The step matters because the loop takes all the strain as the charm swings from a backpack or handbag.
Creative Color Ideas
The sea offers endless inspiration. Try these combinations:
- Turquoise and white
- Aqua and lavender
- Navy and pale blue
- Mint and cream
- Coral and peach
- Sea green and yellow
- Purple and pink
- White and rainbow
- Deep blue and silver
Variegated yarn works beautifully for the tentacles, too. With a gradual color change, the strands look like ribbons flowing underwater.
Ways to Use Your Jellyfish
Keep the jellyfish on a key ring or clip it on with the clasp. Try using it as a:
- Backpack charm
- Handbag decoration
- Zipper pull
- Pencil case charm
- Travel bag tag
- Crochet project bag decoration
- Simple accent on a nursery shelf
- Part of an ocean-themed display
Beginner Tips for Mini Amigurumi
- Use a light-colored yarn first: Stitches are easier to see and count than in dark shades.
- Move your stitch marker every round: Losing track of the round start is the most common reason a small dome turns lopsided.
- Stuff in small tufts: Tiny pieces fill a small body evenly without lumps.
- Practice embroidery on scrap fabric: A test run helps you get the eyes and bubbles the right size before stitching the real piece.
- Keep extra yarn tails long: Longer tails make sewing on tentacles much easier.
Caring for Your Jellyfish Keychain
A keychain goes everywhere with you, so it’s bound to pick up dust.
- Brush it gently or use a lint roller to clear surface dirt.
- Dab small stains with cool water and mild soap.
- Don’t soak the whole charm unless the yarn label says it’s safe.
- Don’t wring or twist the crochet piece.
- Press out moisture with a towel and let it dry completely before reattaching it to a bag.
- Check the metal ring now and then to make sure it hasn’t loosened.
Personalization Ideas
Once you’ve made the basic jellyfish, try giving it different personalities.
Cute Lashes
Add tiny embroidered eyelashes for a sweet character.
Little Bow
A small bow gives a whimsical touch.
Sleepy Face
Stitch closed, sleepy eyes for a calm, soothing look.
Fantasy Glow
Glow-in-the-dark yarn turns it into a magical fantasy jellyfish.
Summer Rainbow
Pair a pastel body with rainbow tentacles for a fun summer accessory.
Seasonal Colors
Go with black, purple, and orange for Halloween, or white, pale blue, and silver for winter. It looks right at home next to a crochet owl keychain on a fall bag.
The same basic construction can create completely different characters every time.
Bring a Little Ocean Along
A rounded dome, a handful of wavy tentacles, and a few stitched bubbles are all it takes to carry a bit of the sea on your keys. Along the way, the crochet jellyfish keychain amigurumi teaches the building blocks of small stuffed toys: working in rounds, shaping and stuffing a body, making little add-on pieces, and using simple embroidery to add personality.
Once the basic build feels comfortable, play freely. Add extra tentacles, test new color pairings, stitch different sea motifs, or make an entire underwater family. Pair it with other small charms like the tiny tiger keychain, and your bag will have a whole handmade crew swinging along with you.