#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.)