Rumble Seat side covers/arm pads

[1Cobra427]

I have a rumble seat on the Model A and I have tried to find the fabric pads that sit on the opening of the rumble, at a show I encountered them on a car and was told they were custom made at upholstery shop for that specific car, is that the only way to get them, or available online somewhere. Some attach to inside rumble opening others are magnetized inside pad to stay in place.