I did this cake for my son's first birthday. I used a construction set I found at Toys R Us as the toppers, and used crushed oreos for the asphault. I don't have a picture of the smash cake, but it was a small rectangle pound cake (I ended up having to send my mother to the store to purchase a frozen pound cake for me to decorate for him last minute, I forgot to save out enough batter for his cake!) with a big #1 and 2 small dump trucks. He liked running the trucks through the icing more than eating it!