Here's a recent character drawing from the ol' sketch book. It's a concept sketch of a shark character for a client in need of a smiling shark mascot with lots of big sharp teeth. I think I was subconsciously influenced by DreamWorks' "Shark Tale" and Bruce from "Finding Nemo."
There were two versions... this one and another wearing sunglasses and a holding a tropical drink. The other one looked too soft and you couldn't see his eyes, but of course that's the one the client chose.