1 (46 oz.) can of chilled pineapple juice
1 1/2 c. light rum, optional
1 (14 oz.) can of Eagle Brand sweetened condensed milk
1 (6 oz.) can of thawed, frozen orange juice, concentrate
2 (32 oz.) bottles of chilled ginger ale

Mix all ingredients in a large punch bowl. Top with scoops of orange sherbet. For a pretty touch, add orange slices and mint leaves.