I am dying to try the NinjaFlex http://makergeeks.com/flsofi.html and conductive filaments http://makergeeks.com/co3dfi.html . Ninjaflex because of its flexibility and conductive because I'm teaching two tech/engineering classes this far and I think the conductive filament would be a lot of fun to use in electricity activities. I'm also interested in one of the enclosed 3d printers (Solidoodle, Creator, Dreamer) as all of mine are RepRaps and it would be nice to have something that my students and I can just load STL files into and go.