I'm restoring an old fan that used a horseshoe-shaped steel pipe for the base, and the ends of this pipe are closed of with two caps.
The caps are made of a transparent plastic, their shape reminding of a "mushroom", like this piece:
This piece is hollow and inside there's another spherical cap made of polished chrome steel.
So when it's fitted in the pipe you can see a transparent spherical cap and inside it the chrome spherical cap.
The issue is that the plastic cap is broken and damaged.
From photo analysis I determined that the plastic cap can be cut from a 27 mm diameter sphere.
Now there's the issue: I don't know where to get a transparent, plastic hollow sphere 27 mm in diameter.
A hollow sphere 25.4 mm (1 inch) in diameter would also work, I'd only have to cut a spherical cap with a slightly larger solid angle. It wouldn't be identical, but close enough.
The issue is that I can't find anything or anyone that sells this.
I've only found some hollow transparent spheres used for Christmas decorations, but none 1 inch in diameter.
I'm trying to figure out how could I make one.
Do you have any idea?