Unwrap each of the Twinkies (very important step), and set aside. On a large plate -- you may substitute a cutting board, frisbee, or piece of cardboard -- spread a generous layer of Cool Whip. Place a row of Twinkies (holes down) on top of the Cool Whip. Cover lavishly with another layer of Cool Whip. Add another row of Twinkies to the top -- perpendicular to the lower row to add stability to the concoction. Top off with the remainder of the Cool Whip. Garnish with a bag of Oreo cookies, if desired. Chill and serve with Grape Kool-Aid.