Treat yourself to a nice cuppa while staring at a cuppa of BOOTY CHEEKS! (Get it - like a couple of booty cheeks?) Who's sorry they gave they gave me the responsibility of writing this description now? Mwahaha. Anyway, this 15 oz heat-activated mug has a simple logo on the side, but when the hot beverage of your choice goes in, a booty photo appears! Heads up, the design is sliiiiiiiightly visible when the mug is cold (as is my experience with all heat-activated mugs), but you gotta be like REALLY in there to see it. Enjoy!