Designing and 3D printing 30 coffee cups in 30 days

Cunicode, a design firm specializing in forms for 3D printers, challenged themselves to create and offer for sale 30 different coffee cups in 30 days. The cups are output from a printer capable of producing glazed ceramics on demand. Shown here, a Klein cup based on the Klein Bottle -- a Moebius strip with one more dimension*.
3D Printed Glazed Ceramics material properties are exactly the same as standard ceramics as it is produced with fine ceramic powder which is bound together with binder, fired, glazed with lead-free, non-toxic gloss finish. For some designs with clear bottoms, the bottom side may remain unglazed.

Glazing reduces definition of design details, for example grooves will fill with glaze. up to 1 mm of glaze can be added in certain areas.This means that some cups might look much smoother once printed than how they look on the drawings, keep that in mind if you purchase any of them.

One Coffee Cup a Day | 30 Days 30 Cups (via Neatorama)

*To forestall the topology pedants, here's the more formal Wikipedia definition, with additional formatting weirdness for lack-of-clarity: "a solid Klein bottle is topologically equivalent with the Cartesian product: \scriptstyle M\ddot{o}\times I, the Mobius band times an interval. The solid Klein bottle is the non-orientable version of the solid torus, equivalent to \scriptstyle D^2\times S^1."