The night before the party pre-scoop ice cream to make the party even easier. Using an ice cream scooper, portion scoops of ice cream onto a baking pan. Place in freezer overnight.
The day of the party: combine 2 parts of Hawaiian Punch and 1 part grape juice until punch bowl is about 2/3 full. Stir to blend. Slowly add chilled 7-Up.
Float about 12 scoops of ice cream on top.
Serve and enjoy! Refill as necessary.
Notes
You can also use pineapple sherbet for the snowballs. Adding more Hawaiian Punch will make the punch even more blue.