Tabletop Cube Puzzle

MattsWithTatts has posted a fun little DIY for creating a cube puzzle for players in his Dungeons and Dragons game.  The only caveat I would offer is that buying or producing 27 individual foam cubes, and then assembling them, probably isn't the easiest way to bring this particular style of puzzle to your tabletop.  Commercial cube assembly puzzles are cheap and widely available.  If you want to be particularly fiendish you can always use a Soma cube.