I didn't use fondant because I think it tastes horrible, so it's just confectioner sugar frosting. I got it so smooth by dipping a palate knife in hot water and smoothing it over. Worked pretty well. That's royal frosting on the hershey bars for windows. I tried to use melted white chocolate but it just melted the hershey bars. Royal frosting is amazing stuff - it will do just about anything. It even worked for mortar on the broken hershey bars - you can see one on the far side of the cake.
Superman on top, Batman and Robin guarding the buildings below.
Red, blue, yellow insides! Very exciting.
Sweet four year old birthday boy.