Don Ken's blog features pretty cool pictures of monsters. He does this all on post-it notes. Here's the little blurb on his blog:
born in Denmark 1978. I write and direct television shows for kids. I have a set of twins and not much time for anything. But when i have time i draw monsterdrawings on post-it notes... it is a little window into a different world, made on office supplies.
Check out his blog for more pictures.