The "Fatman" art above is by Ed Hall. Although I first met Ed five years ago, I've been a fan of his work for much longer. Ed is an award-wining political cartoonist with a wit to match his artistic talent. He also has the uncanny ability to draw caricatures from memory. I first saw him do this when I asked for a sketch for my Stallone gallery. Although I had reference available, Ed said that he'd drawn Sly before so the reference wouldn't be needed. He then proceeded to draw this right before my eyes. Amazing.
You can check out Ed's work here at his blog. You'll find that he does a lot more than just political cartoons, and my guess is you'll like it all.