6 pkg. Jello (different colors)
1 pt. sour cream
Water

Dissolve 1 package of Jello in 1 cup hot water. Blend together 1/2 cup of Jello and 1/3 cup of sour cream. Pour into a 9x13 inch pan and let set. With remaining Jello, add 3 tablespoons cold water. Pour over other layer after it is set. Repeat with each layer. NOTE: Each layer take 20 minutes to set.