Recommended Fabrics: Quality quilting cottons, very light weight upholstery fabrics, non-stretch apparel micro-suedes, non- stretch light weight denim corduroy, non-stretch light weight vegan faux leather or any other fabric that is a woven non-stretch fabric that is a similar weight to a quality quilting cotton. Pre-wash and test all fabrics for possible dye transfer issues. Knobs or Wooden knobs: Anything that resembles couch feet can be used, such as large wooden beads, painted styrofoam squares, hardware knobs.