--1 2-liter of raspberry ginger ale
--1 large can pineapple juice
--1 bottle Welch's sparkling white grape juice (or equivalent of regular white grape juice to keep costs down).
If desired, float half a pint of raspberry sorbet in the punch bowl (or raspberry sherbet if you like punch that's slightly creamy).
This makes about a gallon of punch. It tastes fantastic and a bit more "adult" than some traditional punch recipes.
FYI - you can also substitute a bottle of sparkling wine/champagne for the white grape juice for other occasions.