2 baked 8" or 9" white cake layers, cooled
2 (3 oz.) pkgs. Jello (different flavors)
2 c. boiling water
1 (8 oz.) container Cool Whip, thawed

Place cake layers, top sides up, in 2 clean layer pans; prick each layer with fork. Dissolve Jello separately in 1 cup boiling water (each). Spoon dissolved Jello over cake, 1 color per layer. Chill 3 to 4 hours. Dip layer in warm water for 10 seconds; turn out onto serving platter. Top with 1 cup topping. Unmold second layer; place carefully on top of 1st layer. Frost top and sides with remaining whipped topping. Chill. Garnish as desired.