This is one of the more beautiful projects I’ve seen, just for pure retro quality. Noe Ruiz has written up the project over at Adafruit. Using a Pi, a PiTFT and a 3D printer, along with a few other bits and pieces, Noe has created the PiGRRL: a clone of the Gameboy with a Pi inside. It’s really a great job so all credit to Noe! Read all about it here