A few good metal speedy prototyping pictures I located:
Image by Ѕolo
Far more exciting from Shapeways, this time with Gold Plated Stainless Steel. I made this embossed version of the Classic Space logo with the intent to add a magnet on the back to use as a lapel pin. Came out rather nice.
Image by display22
Erster Frästest aus Cinema 4D auf einer Roland MDX-40