Sega Nomad & Genesis Games

Shiny as it may still look, the Sega Nomad wasn't a particularly brilliant concept for a console. It might be able to play proper Genesis cartridges, you see, but it was thus too bulky and too power hungry to ever hope to compete with the rest of them handhelds. Still, it's a truly portable version of the Genesis that, due to it flopping, is quite a collector's item too.

You can grab one via this Sega Nomad auction, which accompanies the console with a few extras and games (incl: Aladdin and Jungle Strike). Seller ships worldwide.