Create a stellar custom water bottle as a Prom favor--quickly and easily--with our Travel Mug with Ebony Starscape Insert. With all those star shapes, it's the perfect coordinating favor for a starry night or Hollywood Prom theme. The 20 oz. double wall travel mug comes with a push on lid and the ebony starscape insert. Simply add your school name and Prom theme to customize it for school's Prom night. Hand wash only.