So, this is the first website I have been too that accepts bitcoins, all by chance at that.  All the others I have been too I am specifically looking for or find links too on forums like this. 

http://defensedistributed.com/

What is also pretty cool is this is where I found this website.
http://www.popsci.com/


Pretty cool general idea too boot.  I can see this being the way of the future as CAD printers get cheaper.  Would be pretty cool to need something and just be able to download a file, even if it costs a couple bucks, and print out what I need. :-)