I've tried all sorts of bumpers and pads to make closing the interior pneumatic doors a little quieter and I finally found something I'm happy with. This is designed to be a baby bumper for furniture, but after cutting off some of the extra width, it fits perfectly in the width of the door. One roll gave me enough to do the full length of both pocket doors. It's also available in a few shades of white and gray.
Amazon.com : Dovesail Baby Proofing Edge Corner Protector, 16.4 ft Edge... (https://a.co/d/5nORMK6)
Nice, I can see some other areas where that could come in handy.