Fun With Magnets

This looks like fun: NeoCube.

My latest cool toy is the NeoCube, a 6x6x6 cube of 216 small neodymium-iron-boron magnetic spheres which can be arranged into an amazing assortment of geometrical and non-geometrical shapes. You can create various polyhedra, even Buckyballs, and all kinds of familiar shapes, too. It's basically a 3D tangram on steroids. As fascinating as it is addictive.

$30.

(Thanks Curtis)