got milk?

I think that “Got milk?” campaign was very effective. We can see in magazine milk mustache on celebrities. According to Got milk website, the slogan "got milk?" was licensed to the National Milk Processor Board in 1998 to use on their celebrity print ads, which since 1995, included celebrities from the fields of sports, media and entertainment, as well as fictional characters from TV and film such as The Simpsons and Batman, posing in print advertisements sporting a "milk moustache", employing the slogan, "Where's your mustache?". The campaign has been credited with greatly increasing milk sales nationwide after a 20-year slump