Dirt Cake
["1 (20 oz.) bag chocolate sandwich cookies, crushed", "1/4 c. margarine", "1 (8 oz.) pkg. cream cheese", "1 c. confectioners sugar", "3 1/2 c. milk", "2 1/2 oz. pkg. French vanilla instant pudding", "12 oz. nondairy whipped topping"]
["Optional: Flowerpot, about 8-inches high by 8-inches diameter."]
["chocolate sandwich cookies", "margarine", "cream cheese", "confectioners sugar", "milk", "nondairy whipped topping"]