I buy lots of remnants, many are plush type curtaining with no backing. Even though some fabrics say dryclean only, the reality at our place is...nothing except expensive suits get drycleaned. I would handwash them to see how they hold up and if the colour runs. If it survives a wash it can go in a quilt.
Table runners and doona covers look great it non-cottons, as well as cushion covers.