Inspired by the Ultimaker UltiController’s streamlined curved wood design, this is the answer to pen chaos on your desk. While an eye candy of rhythmically roasted and bent wood, it cradles your pens for your ultimate convenience.Made by Alessandro @ Fab Lab ZurichWe used 4 mm thick plywood and laser cut the design straight forward. The puzzle pieces are calculated to hold rather firmly and the bended parts have to stretch around the rounded corners to be in tension and secure the structure. Assembly is a bit tricky, as you have to bend and stretch the flexible parts and at the same time put together the puzzle pieces. The upper and lower notches could be a little deeper to accomodate the upper ring and base better, but it works all in all. It can also be used as a vase for flowers without water!