This is what you’ll do with what you have;
First things first, in a blender, combine bananas, sugar and 3 cups water. Blend it until it is smooth. Pour into a large bowl and stir it in pineapple juice. Blend in orange juice concentrate, lemonade concentrate and 3 cups of water. Divide into 3 plastic containers and freeze it until it is solid.
Remove it from the freezer 3 to 4 hours before serving. Using one portion at a time, place slush in a punch bowl and pour in 1 liter of ginger ale for each.
Serve, and enjoy.