Well I just finished this one ^
Also been working on a 3D sculpt for Installation 01 [url]http://i.imgur.com/x1MOq4e.png[/url]
I'm 18 hours into it (that's an old photo, much more detail since then), gonna probably take another 4-6 to finish the geometry off.
I had a friend who got really into 3D printing until the material got too expensive. He showed me a few interesting geometric structures, a Bulbasaur planter, and this device that he could put over 6 shot glasses that would fill them all up equally. It was some pretty cool stuff.