Silver bearing solder – solid core, lead-free - or more. Available at Lowes, Home Depot, Ace and online. (Some brand names to look for include Oatey and BernzOmatic.)-this link no longer works, but the pic is great inspiration.
Kristine Kennedy -Vintage watch tins (Elgin, Excelsior, etc) are used to frame these dreaming faces, and oh what they dream.of all those watches and all that time. Polymer clay is used to form the faces and acrylic paint is applied as a patina.