Lost Foam Napkin Rings

I buy my zinc for casting at Rotometals.
If anyone knows where to get scrap zinc that would be great to hear from you. Please post a comment.

2" and 1.5" round drill bits make the rings from insulation foam.

The letters are added with a thin cut of the same foam and the the entire model was coated with tape.

A spout is added and also taped around.

The model is buried in play sand and the sand is shaken to get a tight fit around the foam and tape.



Molten zinc is poured on to the foam.



A jig saw is used to cut off the pour spout and the edges are cleaned up with an angle grinder and the residue of the tape is cleaned off with a wire brush.

the full set