I don't remember how I stumbled on Rob Sheridan's drawings, but I love 'em. He did this one ages ago, but he just blogged about it, and it made me laugh all over again.
It's called "Cereal Mascot Reunion", and it's terrific. My only complaint is that it doesn't have the Quisp alien. I love Quisp.
Anyway, poke around his blog and see what's there. His sketches are really, really funny. Some are pretty creepy, too.