Homebrew PCBs

It's not exactly what the OP was after, but, at
http://www.cbridge.com , they have a photo-sensitive screen
product that can make a screen-printing screen, directly
from laser-printed artwork (or any black-and-white artwork).

I think the relevant product name is something like PhotoEZ
HiRes.  I have it here but never got around to trying it. 
The HiRes version is supposedly able to accurately reproduce
text down to 4-point size.  I don't remember the price of
the starter kit that I bought.  But it was fairly cheap.

- Tom Gootee

http://www.fullnet.com/~tomg/index.html