white woven fabric (Kenmore, Finn Hill)

Three pieces (2 about 38"x53" each and 1 that's 43" x 85" plus. These are pillow shaped covers that came on a new sofa and cushions to protect them from dust. My hunch is they could be used as frost protectors in the garden or for Halloween decorations. If they aren't taken by the 19th, they're going in the garbage. Thanks!