Use the GLJGL Glass Crystal Glue to “paint” the design (a little at a time as the glue will start to dry). Sprinkle the glass crystals onto the glue, tap extra off onto paper to save and reuse the ones which did not stick. Fire to Cone .022. It makes a textured, sparkle on glass. These can also be fired onto porcelain too. Just follow the same directions and fire at Cone .022. So usually this would be the last fire for your porcelain piece.