Still on the subject of 3D printing, my lovely fiancée sent me a link this morning:
LIX 3D printing pen has the similar function as 3D printers. It melts and cools coloured plastic, letting you create rigid and freestanding structures. Lix has a hot-end nozzle that is power supplied from USB 3.0 port. The plastic filament ABS/PLA is introduced in the upper extremity of Lix Pen. The filament goes through a patented mechanism while moving through the pen to finally reach the hot-end nozzle which melts and cools it down. An interesting fact about this light-weight, engineered pen is that these structures can be formed in any imaginable shape.
The company is currently raising funds through Kickstarter, by funding the project you can grab yourself a LIX 3D pen for US$135 (currently AU$145)
I can imagine architects will go crazy for this, but there are so many other potential uses beyond art and design.