This one is EASY PEASY.
Take one old can of lemonade mix that's gotten hard and think: What can I do with this????
Add water. Allow some of the hardened mix to dissolve. :)
(Now for those of you who don't have things like hardened pink lemonade mix in the cupboard, a quart of juice will do. If I use orange juice, I add a little less water, like a can less to the frozen can, and that gives your slush less of a "watery" taste. But regular juice is fine, too!
And then!!!!! Oh, THEN!!!!:
And then we put a scoop of "slush" into the cup, gave them a spoon, and let them stir their fruit into their "slush".
And this is what I had when all was said and done!