OnePlus wants more ideas for accessories for its flagship and sole phone, the One. To produce them, it's looking to you. And by you, I mean those of you with the knowledge and will to throw together a CAD file.

OnePlus is working with Ultimaker, a 3D printing company, to hold a contest in which fans get to design their own accessories—not limited to cases—for the One. The public will select twenty finalists. Afterwards, OnePlus and Ultimaker will choose the top three. They aren't promising that they will turn any of the designs into products, but there's a chance.

OnePlusUltimakerContest

All twenty finalists will receive an invite to buy the 64GB black OnePlus One. Third place will get a JBL E1+ earphones or 3 spools of Ultimaker filament. Second place will actually get a free 64GB black One, and first place will receive an Ultimaker 2 3D printer.

In order for all of this to work, OnePlus has supplied the 3D model of the One. The contest starts today and will end on March 19th. To vote, like ideas over at YouMagine.

Detailed rules and requirements can be found over on the OnePlus forum and on Ultimaker's website.