Stand for glasses/spectacles (OpenSCAD design)

I wear a different pair of glasses when I'm working at my desk, in front of the screen. This means that I'm often trying to find whichever pair of glasses I'm not wearing at the moment, or trying not to damage the pair that's currently sitting on the desk.

I tried a few designs off Thingiverse but struggled to find anything to suit, until I came across the design by scarou. Unfortunately, although very practical, it was too small for my glasses (who said "bighead"?).

Because of this I wrote myself an OpenSCAD design that did what I wanted, and would allow me to resize it as necessary. Also, it is hollow so will use the minimum amount of filament.

I will not be developing this further - I have only published it in case it's of use to someone else.