Recipe Here. I used a different filling, and substituted orange peel for lemon. As the recipe made 36 pieces(!) Mr. ETB took a tray to work, which were well received.
Ten years ago, Danny asked me to bake a novelty cake he spotted in a cookbook. Little boys (and some big ones) do love trains! I improvised one for him with what I had at home (when we lived on the farm it was too long of a drive to just run out for unplanned groceries). It wasn't the fanciest cake, but he loved it, and never forgot that I made him the cake he wanted for Purim. Ten years later, I have a Nordicware pan shaped like railroad cars, so I thought it only right that I re-create his favourite cake. He loved it, but truth be told-I think the improvised one had more charm. I made a short video:
Happy Purim if you celebrate it.