What do you do with a junk tank car. I don't own a submarine car so I made one. This was abused, it had holes drilled in the side. Most of the markings were worn off.
The aft hatch was cut with a dremel and lowered. The aft end is a whip cream cap. The fins are birch plywood. The screw cover is a chocolate drink cap. The Sail is a film container. The nose is half of a plastic Easter Egg shell. I had to use Bondo to fill the tank to hold the add ons. The frame was too small for the size and the increased weight so I went with a 6424 frame left over from an ebay lot.
It's too tall to pass under my trestle.

hwell:It's not perfect the picture doesn't show some defects. It was a fun project.