“Magic” Gender Reveal Mug • “It’s a Brown Baby Boy” Coffee Mug • Gender Reveal Coffee Mug11oz Magic Mug This 11 ounce color changing mug is a unique way to REVEAL the gender of the impending arrival of the newborn baby BOY! Surprise family and friends! At first glance this looks like your standard black mug, but upon adding hot liquid (coffee, tea, hot cocoa, or fav hot beverage), your imprinted image of a beautiful brown baby boy comes to life with perfect clarity. This MADE TO ORDER magic ceramic coffee mug is glossy black, but once hot