I got this idea from a FO on Ravelry. It is based on a "brain slug", a character from an episode of Futurama. (the red isn't part of the hat, it is just the ball of yarn I was using to prop the hat up for the picture) I used leftover Red Heart Soft for the hat. I used leftover Berroco cotton for the eyeball. I wasn't sure how to make an oval, so I used the same technique I used for this, starting w/8 sts and increasing 1 at each corner. Then at some point I started making increases only at 2 corners to make an oval instead of a circle/square. I used Simply Soft for the pupil, which I croched. For the antenna, I used i-cord with bobbles at the end, which I learned using Amy's bobble video.