Buckyballs by ZoomDoogle

While the product description strongly discourages giving Buckyballs to children, we can’t help but think they’ll keep tweens and teens occupied with imaginative work. Each set contains 216 powerful Rare Earth magnets that can be shaped, molded, torn apart and snapped together in unlimited ways. They can be used to make sculptures, puzzles, patterns, shapes, stick stuff to the fridge, and whatever else idle minds can think of. $25