3D Printing! What would you Do?

Making Your Own 3D Collection:
http://blog.artic.edu/blog/2012/07/31/making-your-own-3d-collection/

The Art Institute of Chicago museum recently worked with artists to host a 3D printing Fab lab for a day with a Maker-bot. In came a summer camp group of 8-9 year olds... and the discoveries were revelatory:

Creative, inventive, experiencing art and art collections together with the ideas to personally fabricate, remix and make something tangible with room for creativity, reinvention, and collaboration..... Sounds like 21st century skills abound.

As educators, if you had a 3D printer in your school or classroom, what do you imagine could happen? If you already have one, what uses exist?? Please share here or on the blog link.