2 (12 fluid ounce) cans frozen concentrated white grape juice
1 (12 fluid ounce) can frozen concentrated fruit punch or passion fruit juice
8 liters lemon-lime flavored carbonated beverage (i typically use less)
1/2 gallon raspberry sorbet or sherbet
Cut lemon into tiny wedges that will fit into 1 cube of an ice cube tray.
Place one wedge into each cube, cover with water and freeze.
(Sometimes I Just slice the lemons and let them float on top instead)
Thaw concentrated grape juice and fruit punch; mix together. Set aside in refrigerator.
Just before serving, mix a third of the concentrate with a third of the soda.
(I like to make in batches of three so it stays bubbly and fresh during the event).
Pour the soda in slowly.
Add a tray of the lemon wedge ice cubes (or slices) and a few generous scoops of raspberry sorbet/sherbet.