I was watching "Squid Girl" and i had to to it >.<
http://imageshack.us/photo/my-images/402/sam0553o.jpg/
http://imageshack.us/photo/my-images/254/sam0555r.jpg/
You can find the tutorial here-http://shrine.lowyat.net/wp-content/uploads/2010/10/Ika_musume_hat.jpeg-be careful!It's in japanese XD