1 can evaporated milk
1 can crushed pineapple
1/2 c. sugar
1 box jello (any flavor)

Open can of evaporated milk and put in the freezer until crystals form. Bring can of pineapple and sugar to a boil then take off of heat and add jello. Let cool completely. Beat milk until it peaks then add jello mixture. You may use different colors for different holidays.