Use gold or silver. Both are rather reactive, more so with some
folks than with others. Any “treatments” would be short lived as
they would ware off (lacquer, clear powder coat, clear epoxy, etc.).
You might think about making items that don’t touch the body, but be
careful about touching clothing as either metal will rub off and
discolor.
My 2� worth.
John Dach
MidLife Crisis Enterprises
Cynthia Thomas Designs
Cynthia’s sculptures are at: http://www.mlce.net
Maiden Metals,
A small bronze foundry, no web site yet!!