All we want for Christmas is beautiful carnival glass pieces to decorate our studio, house, car, everything. Carnival glass comes in many transluscent colors and gets its iridescent sheen from the application of metallic salts while the glass is still hot from the pressing, then re-firing the glass. It was produced by Fenton Art Glass Company and very popular between 1907 and the 1930s. They quit producing it for many years, but are now on the mission again!