David Goodman, of Goody Glass, specializes in working with Dalle de Verre stained glass. That's French for Slab Glass. The glass starts as 1 inch thick 8" x 12" slabs which are cut to shape and then struck to produce facets. When light passes through, the facets sparkle!
The glass is then arranged and a special epoxy is poured around the glass pieces to create a stained glass window!