I had an old canvas that was half painted and I really didn't want to finish it. I took it to the bath tub because that's the easiest clean up there is. I put a whole bunch of paint on it in globs. Then I dried it with my hair dryer just so the top layer of paint on the globs were dry. I turned the shower on it to create this amazing texture. I let it try for a couple weeks. I found some old clear nail polish and drizzled the whole bottle over it. As it dried it turned some of the paint this weird green shiny color. I like it.