cw&t (consisting of design duo Che-Wei Wang and Taylor Levy) created this beautiful and simple stem for bicycles using a solid block of aluminum. It fits on a 1-1/8″ tube diameter and sells for $89. [via]

The neat and nice thing about this design is that cw&t have released the specifications under a Creative Commons license. So if you have your own metal mill you can download the spec sheet and build your own. Cool!