Amazing Tetris Shirt! You can play the famous video game on a shirt!
The gamer explains :
Here is a project I just finished, just in time for the 30th anniversary of Tetris. a T-Shirt you can play. with an arduino uno, 4 AA batteries and 128 LEDs.
I always wanted a playable Tshirt, well now I made one myself. based on the pumpktris from instructables.