Take two chocolate wafers and sandwich them together with half a teaspoon of whipped topping. Put an additional half teaspoon on top of the top cookie. Set this stack down on its side on a plate and continue stacking sideways until you have a 14-inch long log. On the outside, frost the remaining whipped topping so that it covers the rest of the cake.
Cover with plastic wrap and freeze for about five hours. Take it out and let it thaw in the fridge for 1 hour.
Slice it. On the inside, it will be striped. Just like a zebra!