Knot Cube are eight cubes connected by corner hinges, made of nylon "fishing" wire. The object is to make a 2x2x2 cube and various other shapes.
Watch the YouTube video
Read at the Shapeways Forum
Read more at the Non-Twisty Puzzles Forum
Please order a 3D-printed do-it-yourself puzzle kit from Shapeways at this page (check with Oskar about the nylon wire), or contact Oskar
directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.