Incidentally, this is the very first puzzle design I ever I made, and the one which got me hooked on making puzzles! I became intrigued with the puzzle when I saw directions for how to make one in an article by Stewart Coffin, published in the November 1984 issue of Fine Woodworking. I have shown many of our guests the solution to the Pennyhedron puzzle, quickly snapping it shut and tossing it to them… It’s still a lot of fun to watch a guest begin thinking the solution is as easy as I made it look, and then have a devil of a time finding the solution themselves!

These are the hollow-type Pennyhedron puzzles, and made a bit larger than typical. The puzzles measure about 4 inches across, just enough to fill an adult’s hand and make the solution a bit more difficult to find with tight sliding joints.