3D printing is just such science-fictional magic ... I think this must be the beginnings of the Star Trek Star Trek replicator. Cunicode (via BoingBoing) company designed 30 coffee cups in 30 days using 3D printing technology. Basically, if I'm understanding this right, layers of binder in a container of ceramic dust were built up one by one to form the object which is then dried, the excess ceramic dust removed, then fired and glazed.
The first 3D printer work I saw was from an Etsy jeweler, nervous system.
|nervous system vessel pendant - white nylon and sterling silver|
Their beautiful organically-inspired jewelry is made from different plastics and metals
(and with some different processes as well, not just 3D printing.)
Here's their blog: nervous system which has more details about the beginnings, the process, and the inspirations for their lovely art-to-wear.