Full Mod List:

Instead of provisionally casting on for the tail, I used Judy’s Magic Cast, cast on 48 sts total, and only knit on half of for the fin.

When knitting the mouth interior, I started at the top and knitted it like in the pattern but didn’t bind off. Just worked my way back down 4 sts to and sewed the two edges together. The shark was stuffed and had eyes before I closed everything up.

For the teeth, picked up sts along the entire bottom and entire top of the mouth. Then worked the teeth.
Used 10 mm safety eyes. Perfect size.