If you wanted to be cute, or do this for a playdate or dinner, you could put each fruit in a cute bowl for the kids to spoon out their fruit, OR, you could just open the plastic containers like I did. :) Have the kids spoon (grab?) some of each fruit and layer it in a small cup or clear dish.
Have them add in a layer or two of cereal/oreos/crunchiness in between the fruit.
If they have fantastic self control, let them spoon the Cool Whip on top of their masterpiece! Or, if our kids will just take a big spoonful and go straight to their mouth, you may want to top off their parfaits.
My kids love fruit, but I have never seen them gobble it up that fast! And they were so proud that they made their dessert themselves, and there was practically no mess to clean up; we threw away the plastic containers, cups and spoons. An easy and delicious activity in the kitchen for the kids!