Here are two slab built skull masks I made as demos for a student project. I drapped thin slabs of terra-cotta over crumpled up newspaper. I pressed textures and patterns into the slab beforehand. Then shaped and cut them into skulls. After they were bisque fired I coated them with black slip. I wiped off the high points and left the slip in the recesses. I sponged white slip over the entire piece then used a bronze glaze inside it and around the teeth. This was something more crafty I thought would be fun to try. Perfect for Halloween.