athermirestaurant.com In this circa animated commercial, watch as Fred Flintstone and Barney Rubble of The Flintstones push Busch beer. these cartoon icons pushing beer (they also smoked Winston cigarettes). The Flintstones are the most popular cartoon characters ever used to the Stone Age: Winston Cigarettes, Kentucky Fried Chicken and Dove, to name a few. One commercial-in-a-commercial spot showed Fred watching. Flintstones have been associated with various ads over the years, for the show and two ads made during the commercial break for the show.