Re:Impossible Cookware and Other Triumphs of the Penrose Tile
by doodpants on Friday February 08, 2019 @10:33AM
(#19115112)
You can buy some here [0]. Really nifty laser-cut acrylic pieces in a variety of colors, and you can even get a vinyl mat and set of rules for a board game that uses them. (Disclaimer: I personally know the designer of the game, and helped her playtest it.)
[0] http://gamepuzzles.com/pentuniv.htm#KD