Guts and Grog Reviews held a contest a ways back for a t-shirt based off the latest greatest Asylum-rippingest crazy movie: TWO HEADED SHARK ATTACK.
It's like a real life portrayal of what one of those deformities would look like. Unfortunately, I didn't win...BUT they are still available for purchase if you'd like one. They were created by Critters & Gods, an art blog dedicated to the works of HP Lovecraft, among other things. Currently, they have these shirts going for $15 inc. shipping, you can get them here. Get them now before they're gone forever!