Spare wheels: Brake disc and sprocket covers?

I know I've seen some in use, in the MA pits. Searching only yields some intended for the bicycle market, though anything would be better than nothing. Anyone have a source?
These are for KTM / Husky / Gas Gas. 260mm & 220mm discs; 48t 520 sprocket.

These do not look all that protective:
https://flomotorsports.com/products/copy-of-yamaha-280mm-floating-front-brake-rotor-kit

 

Make your own. Rubbermaid dinner plates, a drill and some zip ties

 

I'm following this thread. I would love to know if there were a commercially available product that had it figured out

 

These were hot ten years ago. I have not seen them lately. Everyone just takes their rotors off.

https://www.roadracingworld.com/news/friday-featured-product-rotor-guards-and-rim-guards/

 

I was thinking similar. Could even line the inside with a microfiber lining if you wanted