BigMouth Inc The Prescription Coffee Mug, Ceramic, Funny Gift for the Caffeine Lover Perfect gag gift for your friends or loved ones Don't settle for a cheap knockoff: The Big Mouth Inc. prescription mug is the original A great gift for anyone that loves that caffeine boost Holds up to 12 ounces of the worlds best medicine  coffee BEWARE of counterfeits and knockoffs, only products "Sold by BigMouth Inc are guaranteed genuine.