My 1st graders created pinch pots with texture on the exterior. I do not glace, and each year I do different things in regards to painting. I've used watercolor, tempera, acrylic, crayon with a black ink dip......a little bit of everything. This year I used Pearl It! by Crayola. I've had it for awhile, but never tired it on anything. I LOVE IT!! I allowed the students to select a liquid watercolor to tint the Pearl It! They look wonderful. Just a little color...and a little shine. It doesn't distract from the clay work the students did.