Slush
["2 Tupperware squares", "1 large can pineapple juice", "1 (6 oz.) can frozen orange juice", "1 (6 oz.) can frozen lemonade", "1 bottle Canada Dry ginger ale", "1 fifth vodka (gin or whiskey)"]
["Make 3 days ahead.", "Shave about 1 tablespoon loosely in glass. Add 7-Up or similar drink."]
["pineapple juice", "orange juice", "frozen lemonade", "Canada Dry ginger ale", "vodka"]