Adapted from here & a recipe I had Big Bears Wife
1 quart Orange Sherbet (softened)
1 quart Vanilla Ice Cream (softened)
2 Liters of Sprite, 7 Up or Ginger Ale
Pour 1 liter of sprite into a large punch bowl.
Soften until you can scoop the sherbet into the punch bowl.
Add the second liter of Sprite and stir!