~The coir rugs in her houses are layed over, not glued down to existing flooring. They are edged in leather. They keep her rooms "grounded".
~Suzanne is fond of fabric applications to walls. No padding is used underneath, though often the fabric is painted with a latex, to give it shape and body, I suppose. The transistions or edges are finished with tape, often fine grosgrain ribbon used by milliners.
To learn more about Ms. Rheinstein, have a look at the 1st Dibs piece on her and her shop, Hollyhock.