Very accurate sundials with easy adjustments for longitude and latitude. These are much prettier than the "World's Most Accurate" sundials, and much cheaper than the "Precision Sundials".
dead link: http://atensundials.com/
Makers of 3-D metal 'printers' such as the one used by Bathsheba Grossman (mentioned elsewhere on QZ Redux).
dead link: http://www.prometal.com/
This artist creates metal scuplture first on a computer, then 'prints' forms using a 3-D metal printer, these are then impregnated with bronze by wicking, then the sculptures are polished and finished. She (he?) also does some 3-D designs in crystal, but those are not as striking.
qz thoughts