This mod of a Nintendo 64 to make it portable would make any Lakitu happy. It's a cloud! Cndowning says this, his second N64 mod, was way easier than the last, taking him only about six weeks to complete. The part list includes a custom formed case, a Nintendo 64 with Expansion Pack, a Zenith PS1 screen with speakers and some electrical components to make this all work. Almost everything came from eBay.
A video (after the jump) shows the progression of construction for the Nimbus 64. After about two minutes in you'll get an in-depth demonstration. I like how a GameCube joystick and d-pad were used in place of the N64 controller components. I also like how there's PlayStation buttons on the backside of the unit (they're R and L buttons).
Not bad, and from what he says, not too difficult sounding either.
Nimbus 64, une nouvelle N64 portable de toute beauté [nowhereelse.fr]