LEGOs. No kid could create the awesome transforming LEGO Game Boy and Tetris cartridge seen above.
The duo are named Domaster and Tetrawing, the result of about a month's effort. Inside the Game Boy, you can actually see two LEGO AA batteries -- a nice touch, if we may say so. To check out some additional shots of the models, hit up the source link below.
[Thanks, G W.]