My wife is a dressmaker by trade specialising in Wedding attire and a very good one
She said that she is going to make me pin covers for my pins. She hasn't finalised the idea yet whether it would be throwover, zipped or magnets etc. Plenty of options.
Fabric could be specified so black out, canvas, whatever.
Could even put some sort of armour in ones that are required for transporting pins.
Just putting it out there that if she were to start making them, would there be any interest for people to buy them?