Turn each bag of mini nilla wafers on their side, and use scissors to cut off the edge.
Take four cookies out of each bag and set them aside to use as a garnish for later.
Open the pudding cup and mix it.
Spoon half of the pudding cup into each bag, on top of the cookies.
Place about 3-4 slices of fresh banana on top of the pudding in each bag.
Using a frosting bag or spoon, dollop about ¼ cup whipped topping into each bag, on top of the bananas.
Top each bag with two slices of banana and three cookies, if desired. Use the final cookie left out of each bag to crumble it and sprinkle it over each dessert for a bit of added garnishing.
Add a spoon and enjoy!