My contribution from earlier this week:
One project I'm working (ok, technically several projects) is a small collection of Canadian Pacific coil steel service gondolas.
Here's one variation, converted from old 52'6" mill gons with sides extended to 5'0" interior height.

The critical bit of the project is the covers. I've got the basic shape of the cover finished up. Doesn't look like too much yet without all the ribs that need to go on it yet. Here's the basic core of the cover just sitting in place on the car:

To get an idea of what the cover will look like when finished, I refer you to this prototype photo. Different style of car (I have also scratchbuilt sides for this type of car) but same covers.
