And when I was younger I did try mixing a bit of every single soda at the soda fountain in Pizza Putt (It's like Pizza Hut but with minigolf, laser tag, and an arcade).
I got this orangeish brown stuff with a green sort of glow to it.
That, is great too The trick to it is repeat business--if you have free refills and are very thirsty, you can experiment I've found that if you put a base of diet Coke, like a third Sprite, and then small squirts of whatever else you like (I go with Dr. Pepper, cherry coke, or something else with that sort of flavor as a garnish; and then a splash of something fruity like Hi-C or lemonade), then it tends to come out pretty tasty It totally depends on your taste though, and it's a sensitive business, because one extra drop of something can sometimes ruin it