To use Crazy Arms, you first remove a minifig’s torso and insert the Crazy Arms brackets into the holes on its hips. You can then attach the straight or bent arms to the torso. There are separate brackets for each arm, so you can pair one default minfig arm with a Crazy Arm if you wish.
Pledge at least $20 (USD) on Kickstarter to get a set of Crazy Arms. The arms are currently slated to come in five colors, with five more to be made available if Crazy Bricks’ stretch goals are met.
[via The Brothers Brick]