Individual protective Caps and Covers - OpenSCAD

I needed a protective cap for my daughter's music stand. It had to be a rectangular cap with a semicircular end.

Since more people in this world certainly need such caps in individual dimensions, I decided to make an OpenSCAD file.

Why not also a rectangular cap with a flat end? Why not another round cap with a flat end? And why not another round cap with a round end?

Here are the OpenSCAD files. Have fun with them.
Markus