I love pre NES, Nintendo non video game items. From decks of cards to the Japanese Mach Rider Toy Car from the 70s.
Paul Jaquays, former id Software designer has some more nice items up for grab, including a nice employees only Quake III Plaque.
Factory Sealed BattleSphere Gold for Atari Jaguar (With all proceeds going to charity).
Ed Edd Eddy PS2 Game Signed (by the Sound Designer!)