#HTE
A Mechanical Flipdot Tetris Machine
Playing Tetris is a reliable way of blowing off steam for many, with a side benefit being that the music may irritate your roommate. But if your roommate has become inured to the song, you can ratchet up the sonic presence of your game-playing by constructing a Tetris machine using mechanical flipdots:
If you’d like to build this thing, there’s some information to get you started here and here. (Just remember to learn German first.)
http://www.core77.com/posts/77035/A-Mechanical-Flipdot-Tetris-Machine