Making Molds for Copper Clay

I have been playing with 2 part silicon to make molds of old jewelry. Then, I press metal clay into the mold and make charms. Here are two of my favorites made out of copper clay, an old cameo that belonged to John's godmother and a Welsh fisherman's ring that was in my family.  The texture on the ring represents the buttons on the fisherman's coat and was worn by his betrothed.