Depending on where you are in the world, the food you eat is going to differ vastly, from the kind of seasonal produce available to -- apparently -- what flavored hot dogs locals consume. Before you think I'm referring to different types of meat stuffed into a synthetic casing, I do not mean beef rather than pork or some Italian seasoning. In central Honshu (the most heavily populated main island of Japan), you can buy fruit-flavored hot dogs.
Specifically, at a gas station in the area, one can purchase strawberry hot dogs. The packaged pre-cooked sausages also come in a lemon flavor. They have pastel pink and yellow coloring to match their fruity flavors as well.