MoCCA — Randall Munroe [XKCD]
I gave this card to him (or rather his Mario Kart Wii partner, Ashley) while a slew of fans were at his table. I don't even know if he got to see it. He was just too busy to accept it then. Ha ha.
Ironically, this was the hardest one to draw.
Taken on June 7, 2008