i.materialise has teamed up with Rhino software to sponsor a 3D Printed Apple Accessory Challenge. Designers have already come up with some great 3D models for iPads, iPhones, iPods, Apple Watches, and Mac Books, and now it's time to cash in on your ideas for 3D printed Apple Accessories by participating in this design challenge. You can submit entries as late as 10:59:59 PM UTC on December 20, 2015 -- so you have a bit of time to think about some great designs. Just remember to follow all challenge submission guidelines. A print of your design and 50, 100, and 200 Euro Vouchers are the prizes for winners. Read more about the contest in the full story: http://3dprint.com/103799/apple-accessory-challenge/