Joris of Shapeways posted a video showing off several sample 3D prints using Shapeway's new Alumide material. The semi-metallic material, while less strong than other build materials offered, seems to convey quite a different character to the printed objects. They no longer look and feel like "plain old plastic".
The video includes several truly amazing items, including mechanical objects: a gearbox with embedded ball bearings and a working ferris wheel!
They're asking clients to print more Alumide to enable them to maintain it as a permanent material offering, as today it's merely a temporary experiment.