Irrational Number Line Games, LLC
So I made some scaled down models of a project I am going to do soon (you all know what that means ...) to make sure my calculations worked. Then I had two cardboard pieces left over. Waste not want not.
The end pieces weren't part of the test project, but I cut those out quickly and painted them up to make some temporary/deployable military shelters. Kind of like a fold-out quonset hut. You can see them here with some 28mm figures and a hover artillery drone.
Since the ends weren't part of the project, I decided to make a couple extra and give them a variety of doors. Putting the doors on the "outside" of the ends means I can use both sides, so I get a lot of options. And since they aren't attached it's easy to get vechicles in and out. Much easier than working garage doors.