3D printing is here. Try RepRap, Shapeways, Fab @ Home. I've been messing around with Blender and PyTopMod to make some designs for printing off at Shapeways. Worth learning these two if you are into things like this (I love this stuff), although PyTopMod may be too mathematical.
RepRap
Darwin: Optoswitch bracket timelapse build from eD Sells on Vimeo.
Fab @ Home
Shapeways
Cool! Print me up a donut will ya?!
That Reprap is a dangerous thing. At least the TSA thinks it might be.
http://blog.reprap.org/2008/07/tsa-really-wreck-reprap-child.html
Nice.
If you want to see the biggest stereolithography machine in the world: http://jp.youtube.com/watch?v=n-HbEiSysIs
May I add: http://www.youtube.com/watch?v=JcBRsejXc_8