Cherie, I don't know what you had in mind in terms of components, but
what about using Precious Metal Clay instead of casting? The metal
clay is composed of fine particles of pure silver or pure gold in an
organic binder. You work it just like clay, then fire it in a kiln.
The binder burns off, leaving behind pure metal.
There are several different types of metal clay: Precious Metal Clay
comes in three versions, one of which can be fired with a torch, and
Art Clay comes in several with similar properties, as well. There are
also folks out there who will do the firing for you for a very
reasonable price, if you don't have access to a kiln and/or you don't
want to fiddle with torch firing.
For more about PMC, visit the Precious Metal Clay Guild's web site
at www.PMCGuild.com. For more about Art Clay, try
Phone: (508) 339-7366
Fax: (928) 563-8255