Check out this beautiful gear mechanism by JSP Math Designs. If anyone else has any amazing mechanisms, automata, engineering projects or just 3D printed trickiness, Please post on the ‘It Arrived’ forum, we would love to see more.
3D Printing News and Innovation
My Universal Equinoctial Ring Dial 2 seems to fit in those categories:
http://www.shapeways.com/model/146656/universal_ring_dial_2.html
It arrived on December:
http://www.shapeways.com/forum/index.php?t=msg&th=4122&start=0&
Looks pretty cool! When you start selling it I recommend adding the tag “steampunk,” I think it would totally appeal to that crowd.