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exclusive fully functional 3x4x5 cuboid very hard and difficult custom Rubik4x5x6 Cuboid shapeshifting 3x4x5 fully functional RubikCurvy Copter very difficult custom RubikMaster Face Turning Octahedron FTO Rubik3x3x3 Rainbow Cube very difficult custom RubikCurvy Copter plus RubikCompy Skewb very difficult custom RubikMaster Brilic very difficult custom Rubik1x2x3 cuboid fun and easy cheap custom Rubik
3x3x3 RubikTom van der ZandenOffset Skewb 2x2x2 puzzle RubikMini Pentultimate dodecahedron RubikConstrained Cube RubikCurvy Copter II very difficult custom RubikTetrahedral Twins special custom stella octangula Rubik
Multidodecahedron - Megaminx and Master Pentultimate in one, Brilic / Pyraminx Crystal, Hungarian Supernova, Starminx, Pentultimate hybrid, twisty puzzle RubikDeep Unaxial 3x3x3 Rubik4x4x6 Cuboid rare Rubik3x3x3 Dino RubikMini Starminx dodecahedron RubikHelicopter Skewb RubikDino Skewb very difficult custom RubikHoley Octahedron custom Rubik

I'm Tom van der Zanden, a Dutch puzzle designer. My puzzles are inspired by the Rubik's Cube and include the Curvy Copter puzzle and Dino Skewb. I design my puzzles in SolidWorks and use Shapeways' white strong and flexible 3D printing material to manufacture them. You can buy some of my puzzles as kits in my puzzle shop or order puzzles directly from me.