Meet the Pongbot: a robotic cup holder that takes your beer pong games to a whole new level. It creates a moving target, so you will have a more challenging target to aim at. The robot spins, randomly changes directions, and moves to keep the game interesting.
Pongbot has edge-sensing technology to avoid falling over the edge of the table. It has auto and manual modes. You can find it on Kickstarter at this time.