Pineapple Vodka Punch
["1 large bottle vodka", "1 large bottle ginger ale", "1 large can pineapple juice", "1 large bottle 7-Up", "1 qt. pineapple sherbet"]
["Combine all liquid ingredients gradually to taste (you may need more of each ingredient, according to your taste).", "Scoop sherbet onto the top of the punch.", "Serve cold."]
["vodka", "ginger ale", "pineapple juice", "pineapple sherbet"]