Start your day with your favorite beverage and your favorite pop icons. Vandor's Star Wars 20 Ounce Heat Reactive Ceramic Mug can help with that! Made of high quality stoneware, this mug's design changes when filled with hot water. It features a bold character design with interior detail as well. Hand wash only - Do Not Microwave. Making retro cool since 1957, legends live on at Vandor - suppliers of hip and functional products for fans of all ages.