There's also a custom box creation. French modder darthchris13 whipped up the creation and then compared it size-wise to a SEGA GameGear.

The SNES Portable sports a 2.5 inch screen, and according to darthchris13, the tricky part was getting all the SNES wiring into such a small casing. Nice work.

http://kotaku.com/5336418/snes-porta...op-at-case-mod