Total Geek Moment...
A 3D printer that can replicate it's self....
http://computerworld.co.nz/news.nsf/tech/2F5C3C5D68A380EDCC257423006E71CD
“We know that people are going to use the printer to try to make weapons [and] sex toys and drug paraphernalia,” he says. “This is obviously not what we’re hoping they are going to build. We are hoping they are going to build more and better RepRaps.”
http://computerworld.co.nz/news.nsf/tech/2F5C3C5D68A380EDCC257423006E71CD
“We know that people are going to use the printer to try to make weapons [and] sex toys and drug paraphernalia,” he says. “This is obviously not what we’re hoping they are going to build. We are hoping they are going to build more and better RepRaps.”