I use to make a lot of 1911 grips for something to do when I was overseas. I made the plexi glass ones to put pictures in but most
guys wanted the ones with Vietnamese coins inlaid into them. I still have a pair I brought home. Now I make them with pewter, poured
into a design and worked down with the wood. I trace pattern on grips with pencil and dremil it out. Undercut the edges of design with
Dremil and put brass tacks in from back side, cut tacks below flush and flux. When pewter is pored in it solders to tacks helping hold
it tight. If wood is to thin heat will burn the undercut area. Use at least 3/8" stock. When you are done sanding pewter design will look
like it grew there.