Innocent Smoothies Big Knit Hat Patterns - Shark Shark Hat - inspired by Catherine Holland's adaptation of a crochet pattern

/ Body
Using 4mm needles
Cast on 28 in blue
Start with a K row, SS 12 rows.
K2tog, work 12, K2tog work to end
P2tog, work 11, P2tog work to end
K2tog, work 10, K2tog work to end
Continue this pattern until 4st remain
Cast off
Cast on 4
Work in SS
Inc in first & last st of next 3 rows
Purl 3 rows.
Dec 1 st at each end of next 3 rows
Cast Off
Side Fins - make 2
Cast on 10 and SS 3 rows
(P2tog, P3) repeat to end
(K2tog, K2) repeat to end
(P2tog, P1) repeat to end
Cast Off

Dorsal Fin
Cast on 10 and SS 2 rows
(K2tog, K3) rpt to end
(P2tog, P2) rpt to end
(K2tog, K1) rpt to end
Cast Off
To Make Up:
Join row ends of body/head together and turn right side out.  With right sides out, oversew the row ends of the fins and sew in place on the body.  Fold the tail naturally in half with the right side out and sew the row ends together, join the tail to the body as illustrated.
I worked my teeth in crochet with a size 3 hook. 
Work a slip stitch into the bottom seam of the mouth with white wool,
1 chain, 2 double crochet, 1 chain and one slip stitch into the same hole to create a tooth.
Slip stitch into the edge of the mouth.
1 slip stitch, 1 chain, 2 double crochet, 1 chain, 1 slip stitch into the same hole to create next tooth.
Continue to create teeth evenly around the mouth finishing with a slip stitch into the first stitch.  Try and work a tooth every 3 stitches - but don't worry too much - my shark all had a variable number of teeth - roughly 9!

Alternatively if you want to knit your teeth - cast on 65 in white and cast off.  Sew the teeth into zig zags to create the teeth.  I haven't tried this, but this is how Catherine completed her original shark.

Add googly eyes to finish off your shark!