Caster to make molds from polymer

Can anyone recommend a good caster that can deal with making a mold
from a polymer clay piece, and then do small production runs in
sterling silver? 

I can recommend a great caster that I a very happy with. His name
is Daniel Grandi and his company is called Racecar Jewelery. He has
an ad with links to his site at both the top and bottom of this page.
Many orchid folks use him; his is more than capable to handle your
situation. Not only is he a good caster be is also patient and
helpful. Also you get to support of fellow orchidian at the same

Mark Kaplan
Providence Rhode Island USA