BuckyBalls

As if the Internet didn't offer enough ways to lose vast tracts of time, we've found an impossible-to-put-down desk accessory (OK, toy) to challenge your creativity: BuckyBalls Magnetic Building Spheres. The tiny (five millimeter) balls are super-powerful rare earth magnets that can be sculpted into shapes, patterns, jewelry, or the distinctive molecular shape from which they get their name. "Trying to find something more useful is useless!" boasts Zoomdoggle, the company behind the BuckyBall craze. Each set includes 216 magnetic balls as well as a plastic storage case—just don't expect to get much use out of it.