Made this for my nephew's 1st b-day. All buttercream with fondant accents - everything is edible except for the fire hydrant, dalmation dog and boots which were candles. The firetruck was all chocolate made from a 3-D mold. I used crushed oreos on the top of the bottom layer to make it look like a roof. I cheated on the fire hat and covered a mini plastic hat with fondant - it was a last minute addition that I think really helped set off the cake.