If you are able to make an RTV mold off of an original, then regular
terra cotta pottery clay or porcelain takes a really fine
fingerprint (you just want a really fine-grained clay).
I imagine Sculpey would work as well, just get it warm and kneaded
with your hands, talcum powder the tiny fingerprints (brush off
excess powder with a paint brush), and print. But then you have to
make an RTV mold of your original…
–Terri
Hi Brent, Now, first of all, I should preface this by saying I’ve
never done this before… but here’s the idea. Take an ink
fingerprint, and then use that to “photo etch” the graphic onto some
of that light sensitive emulsion that Rio sells. It’s like this stuff
that gives you a raised/embossed look when you expose it with an
image. You wouldn’t need any special equipment, just lay the
fingerprint graphic over the emulsion. Check out your Rio catalog,
and perhaps someone else has used this stuff.
Or, you could make an ink fingerprint, then scan it as a high res
JPEG, and send it to Dan Grandi. He could then mill you an original
from the graphic. But, it’d take forever to mill, and be expensive.
Good luck!
Drew
Andrew Horn
Designer,
Alythea Arts
http://www.alythea.com
Or, you could make an ink fingerprint, then scan it as a high res JPEG, and send it to Dan Grandi. He could then mill you an original from the graphic. But, it'd take forever to mill, and be expensive.
Not forever 
Last time I did this I think engraving (on a flat
plate which I formed afterward) time was about 5 minutes or less. I
think I charged $25, uh, in about 1994. What took the longest time
was cleaning up the scan. However, the PMC alternative sounds super
cool. I’ve never used PMC and didn’t know it could pick up such fine
detail.
Jeffrey Everett