So Now You Know

A Roy Rogers is a non-alcoholic cocktail made with cola soda and grenadine syrup, garnished with a maraschino cherry. It is sometimes referred to as a "Darth Vader" or a "Shirley Temple Black"; however, in recent years, both this name and the original "Roy Rogers" have given way to the term "grenadini".
Sorry Chris, I couldn't find anything on a Buck Rogers mocktail.