Been poking at logo designs for myself and I think I've come up with a winner. This is just the initial drawing. Form here, it's off to be super-scanned then converted into a vector, and cleaned up (so the teeth are sharp, and the white lines properly break the surface and are of an even line-weight and such).

This image is not just Copyright Christina "Smudge" Hanson 2010, but Trademarked by Christina "smudge" Hanson 2010. No one can use it but me. bwahahahaha!