OskarPuzzle has shared plenty of cool puzzles and 3D printed designs on his channel in the past. Elliptic Gear Art is another piece worth a look. It has 12 elliptic gears with herringbone-style that are connected together, allowing you to change the shape of the piece as you rotate them.
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Elliptic Gear Art
The above video shows what Elliptic Gear Art is all about. You can order yours here.
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