I got this idea from several cakes on CC. I used a number 2 pan for the top cake, which is just set on top of a 9x13 with no supports since it's just a single layer. The little boy's mom placed two toy trains on top of the cake after I dropped it off, which completed the look. Everything on the cake is edible. BC water with corn syrup added to it for shine. I made the ducks from fondant, the sign from gumpaste and edible markers. Fondant bunny and fondant boat (my 3 year old son's idea for the boat). Royal icing drop flowers. I also sprinkled the tracks with raw sugar to look like dirt and gravel.