These were used to make styrofoam tombstones by spraying solvent-based paint through them and onto the foam, which then etched in the letters. A little work with a torch and some sprayed acrylic paint completed the spooky look, alas I have no pictures of the finished product. The material was dirt cheap 1/8″ hardboard, reinforced with a little epoxy (that’s the dark areas in the picture above) which made those delicate little threads holding the centers of the “o”‘s, etc. tuff as nails. Well, at least as tough as epoxy nails.