I saw a quilted purse in a shop while on a trip that used four 2-piece grommets for the straps to pass thru. They appear to snap together to cover the fabric (they are 2-pieces each), have an inside diameter of about 1-1/2' and a 1/4" outer ring, and are plastic.
Does anyone know where I can find these? I think I would prefer them to smaller metal grommets I have seen at LFS.