Mix the pudding, milk, sour cream, in a bowl when this mixture has set up a bit and in half of the whipped topping and gently fold into the pudding mixture until it is evenly blended together.

Slice Banana in about 1/4 inch slices, place in bowl and pour lemon lime soda over bananas. Coat evenly with soda then remove bananas and place on a paper towel to drain off the soda.

Layer wafers, pudding,and bananas in a bowl. Repeat layers. After all layers are completed, top with the remaining half of the cool whip. Garnish with a few crushed vanilla wafers.