It is very annoying that the hook when not in use, according to rattle when you move the door. When the door closes quickly beat them two or three times on the door and sound like a chime but not only with beautiful tones.
Since it has been saved in the wrong place, a thin rubber or felt layer inside would there could very cheap remedy.
I now have purely stuck Filzpuffer laboriously in each hook, cut from self-adhesive chair foot glides. So is peace and the door paint will not rub off.