I was inspired to make this cake for my son because he is so into construction vehicles. It was all toys I had on hand and didn't have to buy anything extra. My son turned 3.
I only used a 13x9 baking pan, cooked it the night before and let it cool overnight and in the morning I began to frost the cake. I used crushed up Oreos for the "dirt," mini chocolate chips for the "rocks" and Pretzel sticks for the "logs."