Cast Puzzles
Hanayama's metal puzzles are mostly classic "tanglement" affairs, where you attempt to separate the component pieces (and hopefully reassemble them). Once you learn how to solve each puzzle, they aren't really all that much fun to repeat, unlike a Rubik's Cube. However, these puzzles are a lot more beautiful than a multicolored plastic cube, and once they're solved, they transition gracefully to paperweights, conversation pieces, and something to just fiddle around with unconciously. The puzzles are divided into six levels of difficulty. Skip the lower half, unless you're buying for a child. But don't think you'll start at the top, either. Several of the toughest puzzles are "unranked." Take on the Enigma at your peril.