Destructoid reader David sent in images and videos of his handmade portable Nintendo 64, which he calls the D64. This is a retro system brought up to date as a portable system, running off rechargeable batteries. It utilises a PS1 screen and a N64 joy pad, with rumble and memory built in. This thing even has a multi port adaptor for split screen multiplayer action.
It's amazing that all of the system and controller parts fit in that little case, let alone the screen and speakers. Great job, David.