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Single crochet whale calf amigurumi in one piece
Dense Amigurumi

13 rounds · filed under dense · 10 of them

DenseDrapeNo feel

Amigurumi · added 16 Sep 2026

Single crochet whale calf amigurumi in one piece

Single crochet builds a dense, curved fabric for this whale calf amigurumi worked head to tail in one piece.

Skill
Intermediate
Time
4-6 hours
Hook
3.5 mm
Yarn
Worsted
Rounds
13

About this pattern

The body is one long taper, worked as a single continuous piece from a six-stitch crown at the head down through twelve rounds to the tail, so there is no seam running down the belly. Once stuffed, the shape wants to sit low and round like a stone, front-heavy near the head where the increases stack fastest. The four fins are flat, floppy discs made from a single ring of double crochet, meant to be tacked on rather than stuffed, so they flex instead of poking outward.

The swatch in numbers

Rounds
13
Parts
2
Level
Intermediate
Time
4-6 hours
Hook
3.5 mm
Yarn
Worsted

The yarn and the hook

Yarn

  1. Himalaya Dolphin Baby (120m/100g)
  2. Hook: 3.5 mm

Eyes

  1. 10 mm safety eyes
  2. Stuffing

Stitches, spelled out

sc single crochetDense; inc increase; dec decrease; ch chain; dc double crochetDrape.

Fins

Make 4
Round 1Chain 3; in the first chain stitch work 5 dc, ch 2, slip stitch into the same stitch.

Head + Body

Worked as one piece, starting with the head.

Switch yarn color to white after Round 8.

From Round 9 onward, crochet in back loops only.

Insert safety eyes between rounds 8 and 9.

Round 1Ch 2, in the 2nd ch from hook: 6 sc. (6)
Round 26 inc. (12)
Round 3(1 sc, inc) x6. (18)
Round 4(2 sc, inc) x6. (24)
Round 5(3 sc, inc) x6. (30)
Rounds 6–730 sc (2 rounds).
Round 8(attach fins while crocheting): 1 sc with 1st fin, 1 sc with 2nd fin, 7 sc, 1 sc with 3rd fin, 13 sc, 1 sc with 4th fin, 6 sc. (30 sc)
Round 930 sc.
Round 10(3 sc, dec) x6. (24)
Round 11(2 sc, dec) x6. (18)
Round 12(1 sc, dec) x6. (12)
Round 136 dec, close hole and hide the yarn end.

How the texture is built

  • The increase pattern spaces evenly across each round (1 sc, inc, repeated six times, then 2 sc, inc, and so on), which is why the body domes outward smoothly instead of forming a pointed cone.
  • The fins are worked flat as a single round of double crochet into one chain stitch rather than joined in the round, which is what lets them lie flat and pliable instead of cupping like the body does.

When it does not look right

The body curls into a cup instead of
The increases are landing unevenly or too tightly packed; recount each repeat against the stitch total given for that round and loosen tension slightly on the increase stitches.
The fins flop stiffly instead of lying soft against the body
This flat double crochet round can pick up extra stiffness if worked too tightly into that first chain stitch; loosen the tension on the initial 5 dc group so the fin fabric has some give when tacked on.

Questions people ask

Does the body need a seam or is it really one piece

The head and body are worked as a single continuous piece across twelve rounds with no seam down the middle. The only joins to sew are the four fins onto the finished body.

What size hook keeps the stuffing from showing through

The 3.5mm hook paired with the baby-weight yarn is sized to keep single crochet stitches close and dense, so stuffing stays hidden. Going up a hook size loosens the fabric enough that white stuffing can peek through.

Can the fins be made to stand out from the body instead of lying flat

As written, the flat double crochet round makes fins that are naturally floppy and meant to drape against the body. To make them stand out, work a firmer tension on the 5 dc group or back the fin with an extra layer of fabric before attaching.

New patterns, as they are filed

One short email when a batch lands, with the feel of each.