These are two porcelain bottles that were first fired with a white cone 6 glaze to make them waterproof then i sprayed on a low temp iron glaze with a good amount of clay in it so it stuck to the glazed surface. I then sprayed Albany slip over in places then a Lichen glaze. I then used a blow torch to get the lichen to jump off in places. Then low temp. fired to 1020. deg.