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John Rausch’s Puzzle World website showcases some incredible and ingenious objects from Rausch’s own puzzle collection, and from those of others. The site is divided into categories like interlocking solid puzzles, impossible object puzzles, sequential movement puzzles, etc. It’s a nearly inescapable click-trap. Shown here are two of my favorites, so far. Above is Stewart Coffin’s handmade “Jupiter” puzzle, and below is Harry Eng’s “Jar of Tennis Balls.”

Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.