Free Crochet Cute HANGYODON Car Key Cover Pattern

Have you ever spent ten minutes digging through your bag only to find your keys scratching your phone screen, or worse, looking completely plain and boring?

Say goodbye to lost keys and hello to Hangyodon, Sanrio’s most wonderfully quirky, soft-hearted blue fish!

Today, we are transforming a simple ball of yarn into a hilarious, functional Hangyodon smart key cover complete with his giant signature lips and top fin.

Materials and Preparation

Materials:

• Yarn (Light Blue): Main body, side fins, and tail ornament.
• Yarn (Pink): Giant plush lips frame.
• Yarn (Dark Blue): Top fin and back fin details.
• Yarn (White & Black): Eye bases and safety eyes or black embroidery yarn for pupils.
• Stuffing (Polyfill): A small handful for the decorative ball cord.

Tools:

• Crochet Hook: 2.5 mm – 3.0 mm (use a snug hook size to keep stitches tight and structured).
• Yarn Needle: For weaving in ends and assembling facial features.
• Stitch Marker: Essential for tracking spiral rounds.
• Scissors: For trimming yarn ends.
• Key Ring / Hardware: For securing your smart key inside the cover.

Preparation Notes:

• Maintain consistent tension throughout the body so the key cover holds its shape and fits snugly around your smart key.
• The main body features a window opening created by turning back-and-forth rows before joining back into continuous rounds.

Abbreviations and Notes

Abbreviations:

• MR: Magic Ring
• ch: Chain stitch
• sc: Single crochet
• inc: Single crochet increase (2 sc in the same stitch)
• dec: Single crochet decrease (sc2tog)
• hdc: Half double crochet
• dc: Double crochet
• sl st: Slip stitch
• BLO: Back loop only
• FLO: Front loop only

Pattern Notes:

• The head and lower body are worked in continuous spiral rounds.
• The key window frame is worked in back-and-forth rows to leave a clear opening for smart key buttons or remote displays.
• All stitches are written in standard US Crochet Terms.

Gauge, Approximate Size, and Pattern Notes

Gauge:

Gauge is not critical, but stitches should be firm to maintain structural integrity.

Finished Size:

Approximately 3.5 inches x 2.2 inches (9 cm x 5.5 cm), perfectly sized to fit standard automotive smart keys and house key fobs.

Special Techniques:

• Window Opening Technique: Switching from working in the round to turning rows and back to the round to form a clean rectangular window.
• Surface Lip Attachment: Moking the pink lip frame directly into the front loops (FLO) around the key window for a 3D pouty finish.

Step-by-Step Pattern

Part 1: Main Body & Key Window

Worked from the top of the head downward in Light Blue yarn:

• R1: MR 6 sc (6)
• R2: 6 inc (12)
• R3: (1 sc, inc)*6 (18)
• R4: (2 sc, inc)*6 (24)
• R5–R7: 24 sc (24) (3 rounds)
• R8: 6 sc, ch 1, turn (6) (Leaving remaining stitches unworked to form the window top)
• R9–R16: 12 sc, ch 1, turn (12) (Working back and forth in rows for 8 rows to build the window height)
• R17: 12 sc, ch 12, join to the opposite side with sl st, ch 1 (24)
• R18–R22: 24 sc around (24) (5 rounds to finish the lower body)
• R23: (2 sc, dec)*6 (18)
• R24: (1 sc, dec)*6 (12)
• Fasten off and weave in ends, leaving the bottom centered hole open for key insertion or drawstring passage.

Part 2: Giant Pink Lips Frame

Attach Pink yarn to the front loops around the body window opening:

• R1: Attach yarn at the bottom corner of the window opening, sc evenly around the entire perimeter (approx 28–30 sc depending on edge spacing), sl st to join.
• R2: FLO (1 sc, inc)*around the lip perimeter to create a thick, plush 3D pout (36–42).
• Fasten off, weave in ends securely.

Part 3: Facial & Body Details

Head: Top Fin & Side Fins

• Top Fin (Dark Blue yarn):
  • Foundation: Ch 6.
  • R1: Starting in 2nd ch from hook: 1 sc, 1 hdc, 1 dc, 1 hdc, 1 sc (5). Fasten off, leaving a tail for sewing to the top center of the head.
• Side Fins (Make 2 in Dark Blue yarn):
  • R1: MR 4 sc (4)
  • R2: (1 sc, inc)*2 (6)
  • Fasten off, leaving a tail to attach to the left and right sides of the main body.

Body: Eyes & Hanging Cord Ornament

• Eyes (Make 2 in White yarn):
  • R1: MR 6 sc (6)
  • Fasten off, leave tail. Attach a safety eye or embroider a black pupil in the center before sewing above the lip frame.
• Drawstring & Ball Ornament (Light Blue yarn):
  • Ball: MR 6 sc (6) rightarrow 6 inc (12) rightarrow 12 sc (2 rounds) rightarrow 6 dec (6). Stuff lightly before closing.
  • Cord: Chain 45–50, attach one end to the top interior key ring and thread through the top opening of Hangyodon’s head, finishing with the stuffed ball ornament on the outside.

Part 4: Edging, Assembly & Finishing

1. Attach Top Fin: Sew the Dark Blue top fin along the center top seam of the head between R2 and R5.
2. Attach Side Fins: Position the two side fins symmetrically on the left and right sides of R12.
3. Attach Eyes: Sew the white eye circles directly above the pink lip frame, spacing them evenly.
4. Key Assembly: Pass the hanging cord through the top hole of the cover. Connect your smart key fob to the internal key ring so it pulls neatly inside the body when closed.

Detailed Pattern Breakdown

1. Main Body Geometry:

• The design begins as a standard Amigurumi dome using continuous rounds of single crochet (sc), expanding from MR 6 sc up to 24 sc to fit the width of a standard remote key.
• The transition at R8 creates the front window. Switching from continuous rounds to flat rows (ch 1, turn) allows the fabric to split open cleanly while maintaining structural stability on the back wall.
• Rejoining with ch 12 at R17 restores the 24-stitch cylinder, locking the bottom half into place for a seamless finish.

2. 3D Lip Construction:

• The dramatic lip feature uses Front Loop Only (FLO) surface crocheting along the window raw edges.
• Increasing stitches on R2 of the lip frame (inc) forces the pink yarn to flare outward, giving Hangyodon his signature adorable pout without needing complex internal wiring or extra stuffing.

3. Functional Hardware Integration:

• The top opening remains slightly adjustable to allow the pull cord to slide smoothly while keeping the key securely encased.
• The bottom open boundary allows easy access for battery changes or physical key blades without requiring complete disassembly.

Pattern Question:

Question: How can I adjust the size of the key cover if my smart key is larger or wider than usual?

Answer: To widen the cover, extend the main body expansion rounds: add an extra increase round such as (3 sc, inc)*6 (30) at R5 before continuing down. When creating the window opening at R17, adjust your chain count to match the new width (e.g., ch 15 instead of ch 12) to keep your total stitch count consistent.

Question: Why are my pink 3D lips curling inward instead of flaring out around the key screen?

Answer: If the lips curl inward, your surface stitches around the window opening may be too tight, or you skipped the increase pattern in R2. Ensure you work loosely around the corners and execute the (1 sc, inc) sequence on R2 to force the stitches to spread flat and outward.

Question: How do I keep the top ball ornament from pulling through the head hole when I pull my keys out?

Answer: Make sure your top ball ornament expands to at least 12 stitches across, which makes it larger than the 6-stitch opening at R1 of the head. Alternatively, you can add a small wooden bead or washer inside the cord loop directly below R1 to act as a secure stopper.