Haha! I sell slush puppies in the newsagents, and YES I do often get asked for a mixture of more than one flavour. So it is possible, even in tiny paper cups. Here's a terrible joke I once cracked:
(Girl worker is waiting for me to finish using the slush puppy machine, so she can use it)
Girl worker: "Hurry up on that thing."
Me: "Hey, it's a slush puppy machine, not a RUSH puppy machine!"
Boom boom. How we laughed. I never cared for slushies much, myself.
― weasel diesel (K1l14n), Wednesday, 13 November 2002 18:26 (twenty-three years ago)