Bollo BOLLO A TOY FOR THE CREATIVE MIND WITH A LOT OF SPARE TIME
BOLLO is a 3D building toy with digital balls. It is about as useful as a box of Lego, but it is great fun to play with. You plug steel balls together to construct anything you can imagine. Bollo uses the pyggel opengl libraries which are included with the game.
WARNING: This toy is very addictive.