I had this same issue on my old Tigé when restoring it. I cut some rings out of 1/8" cutting board i bought at the dollar store and covered them in a complimentary colored vinyl. I used 3M Super 77 spray adhesive to adhere the vinyl to the rings, worked like charm the entire time i had it and nobody knew. I thought i might have to do the same with my MoMo's on the LSV but carpet is more forgiving and i just had to brush and lift the pile.