I’d make a plaster/silica
October 18, 2010 at 3:16 am #11753
I’d make a plaster/silica replica of the shell and fuse over that. If the design has no undercuts you could do it out of clay, bisque fire it, kiln wash it, and re-use it.
Real shells disintegrate and can create huge bubbles due to off-gassing.
Helios Kiln Glass Studio