Covered with cereal gravel and strewn with doughnut-hole boulders, this multitiered mountain is sure to win fans at a party with a dirt bike, X Games®, or Motocross motif.
Trim the cake tops flat. Cut 1 cake in half, and cut one third from another cake.

Assemble the cake as shown, frosting between each layer: Stack the 2 rounds, add the two-thirds section, and insert 3 straws, spacing them about 1-1/2 inches apart. Add 1 cake half (you can save the other for snacking) and insert 2 more straws. Add the cake third and the last 2 straws. Frost the entire cake.
Sprinkle on a cookie dirt trail, then add pretzel rods, cereal, doughnut holes, and licorice for log trail borders, rocks, boulders, and plants.
To make the finish-line banner, cut 2 pennant strips from Fruit by the Foot® and wrap the ends around 2 pretzel rods, pinching them in place. For trail markers, wrap Fruit by the Foot® flags around thin pretzels. Push the banner and flags into the cake, then add a toy dirt bike and rider as shown.