i thought the same thing, you could get think fabric and spray adhesive it onto the front and wrap it around to the back glue the back down then screw the plate on!
@snasa, would you be willing to post another design with a 58mm wide diameter holder (as opposed to the current 56mm diameter) for an off-brand magsafe charger for both the stand and base, or post the CAD files or a link to the CAD files and change the license type to allow derivatives? I have some alternative magnetic wireless chargers (https://a.co/d/eAIGmqO) that I would like to fit in this stand. Thank you for considering this!