what you need: camera, laserpointer and david software, thats it.
face api, seeingmachine.com
a book about personal fabricators by Neil A. Gershenfeld
mobile phone based on linux, the whole phone is opensource!
also an open source hardware product, built up your own roland t303;
an open source 3dplotter built up on gnu license;
example for open source hardware, a car built up on open source idea;