Poof! Fill this black mug with hot liquid and watch as the image magically appears. This is no fantasy; watch as Zatanna appears! There's nothing like the magic of a transforming mug or the magic of Zatanna. This transforming mug features the DC Comics Bombshells Zatanna. This mug transforms from black to a full color image of Zatanna when filled with hot liquid. This 11 Oz mug is not microwave or dishwasher safe, hand wash only.