Hi Shapeways fans, One Nick Is Enough was inspired by Ton Brouwer's Tetra Pack. When George Miller saw that puzzle, he wondered whether that tetrahedral cage could hold Soma piece. He decided that the cage would at least one nick to let the first pieces out. Volker Latussek subsequently found a design that demonstrated that One Nick Is Enough. Watch the YouTube video. Buy the puzzle at my Shapeways Shop. Read more at the Non-Twisty Puzzles Forum. Check out the photos below. Enjoy! Oskar