Frigits

As long as we're exploring the world of build-it-yourself marble mazes and such (see Cuboro), check out this set: it's a bunch of wacky plastic chutes, tunnels, and toys, each magnetized to stick to your fridge or any other metal surface, with which you can build a fancy marble-carrying machine in any configuration that strikes your fancy. It's Frigits, and it's by far the most fun you can have with fridge magnets. $29.95 USD. (Via Gizmodo.)