During class we took a tour of NYU's Advanced Media Studio (AMS) and their 3D printing systems. We saw some models produced on the various systems, many of which were printed in 24-bit color. They have MakerBots, of course, but they also have some "professional"-grade laser printers including the ProJet 7000 which prints at a resolution of 4,000 layers per inch.
After we returned to ITP, Peter pulled out some aerogel, which was truly incredible. It feels like styrofoam but weighs almost nothing, and is semi-transparent. It was probably the strangest material I've ever seen and touched, and I couldn't stop taking pictures. Neither could anyone else.