Homebrew PCBs

There is a Japanese product called Riso Print Gocco, which is a
printing kit; apparently about a third of Japanese homes have one.

To use it you produce a stencil by bringing an original with carbon in
its ink (such as a laser printed paper) next to the stencil screen and
exposing it with an old style flashbulb. The heat absorbed by the
carbon dissoves the mesh and you have your stencil (I am sure this
rough outline has many inaccuracies since I have never used one of
these). I understand that the mesh of the fine stencils is 200. 

Has anyone used on of these kits to make PCB's?

I don't want to buy one just to experiment. (They are not cheap and
have recently gone out of production, and the mesh, etc required to
use them will only be around for about 3 years max.) If they worked
for sure I would consider looking for one.

Grant