For Joshua's family party I made a "construction site" cake. In the weeks before his birthday, Joshua told me exactly what he wanted on his cake. As the party got closer his list grew longer! I had to use the biggest pan I have (12x18) with a 2nd tier (10x10) to incorporate everything!
Joshua was very excited to find "Lego candy" and "chocolate rocks" that we could use on his cake.
I'm glad he doesn't understand proportion yet. The cone candles were as tall as the construction workers!