Quick project of covers for flat keys with a round handle with a diameter of 24 mm. Added numbers to quickly locate the key. I only needed numbers 1 and 2, but if someone needs other numbers, I will make such a file according to my modest skills.

UPDATE

I edited the key caps.
Now it's up to number 5.
Added STL files without inserted numbers so that they can be printed on printers without filament changers.
Number 4 is in two font versions so that it can be easily printed.
All new files have the key diameter set to 24 mm.
Please use XY compensation.
If there are problems with matching, I will upload a version with a diameter reduced by 0.1 to 0.2 mm