Atari 2700 RC Stella Prototype

Unique Atari 2700 RC Stella Prototype Console
I strongly suggest reading this article on Atari Museum to know more about this unique item.

Quickly: it’s an unreleased Atari 2600 with wireless controllers that emitted the signal within a 1000 foot radius, creating havoc, disorders and, probably: paper plane crashes, fermentation of lactose, pigeonhole diharrea, octopus hardcore jogging, talkative spinning bacteria, common eye shrinkage, stairway hot melting, tree hauling, right to left switching, zone hardner, falling butter clouds and annoying posts.

Other stuff:
Sony PSP Testing Tool DTP-H1500
2 Sega Saturn samples
Nintendo NES Sculptured Software development card
Xbox samples: DOA3, Oddworld,Amped,NFL Fever 2002,Fuzion Frenzy