Can't. Stop. Playing. With. Buckyballs. Seriously, since this set of mind-blowing magnets landed on our desk a couple days ago, it's been nearly impossible to put them down. Each of the little tiny orbs is a "rare earth magnet" that will attract and repel the other 215 in the group at just the right tension to make shaping them, pulling them apart, and putting them together again absolutely, positively, addictive. We even made a necklace yesterday afternoon! Fun stuff to help you de-stress.