Oskar's Mechanical Puzzles
by OskarPuzzle
Demonstrations of new, innovative mechanical puzzles, mostly designed by Oskar, (c) 1987-2012
Buy mass-produced Oskar puzzles at http://www.puzzlemaster.ca/browse/oskar/
Buy exclusive 3D-printed Oskar puzzles at http://shapeways.com/shops/oskarpuzzles
http://oskarvandeventer.nl/