In the 30 years since Alexey Pajitnov first launched Tetris, the worlds most popular game has regularly been immortalized in fashion. Luxembourgian Mark Kreger wanted to do the same, but instead of cooking up a colorful print, hes staving off boredom with something much more interactive: a playable Tetris T-shirt. Featuring 128 LEDs powered by an Arduino Uno microcontroller, Kregers marvellous tee requires only four rechargeable AA batteries to power the game.