If you’ve ever played a marble maze game such as Labyrinth, you know it takes patience and a steady hand. Take that game to the third dimension and you’ve got Perplexus, the maze in a transparent sphere. Co-invented by a magician, who is also a teacher, this intricate, challenging puzzle is composed of multiple tracks with 100 barriers. You maneuver a small, metal ball through the maze by flipping, rolling and carefully twisting the sphere. Frustrating, yet addictive, Perplexus helps build patience, perseverance, and hand-eye coordination.