Hi Shapeways fans, Krystian's Disk is an invention by Krystian Wilisowski. It is a disk built of 24 segments in six sectors. The sectors can shift with respect to each other, enabling different ways that the segments can be rotated. Watch the YouTube video. Buy the puzzle at my Shapeways Shop. Check out the photos below. More photos at the Twisty Puzzles Forum. Enjoy! Oskar