Happy SHARK WEEK!!!

This is a pattern created using the structure of http://www.ravelry.com/patterns/library/dulaan-zud-hat, and some of the ideas from http://www.ravelry.com/patterns/library/shark-hat.
You can use the pattern for just the fin, tail, teeth, and ear flaps, and attach them to whatever hat you knit.

I also used partial skeins of White chunky and Red and Black Worsted Weight Yarn, but whatever you have in your stash would work.