That's a new one to me but I don't really care for Dr Pepper. Once in a blue moon I will put some vanilla ice cream in a mug and add some orange juice to it to make a Creamsicle float.
Have you ever heard of a Boston Cooler? Its common around Michigan, its a float made with Vernors or another type of ginger ale and it was created in Detroit, not Boston:
http://www.freep.com/story/life/food...lers/84612608/