I think that you can use whatever you want in a crazy quilt--silks, wools, velvet, velveteen, lighter weight upholstery fabric, layer organza on it, fancy machine stitching on top of the seems, lace, Rickrack, ribbons. For a bed quilt, you would want a,l washable material, but for a throw or wall quilt, do whatever moves you. Add whatever buttons or glitter or whatever embellishments you want. At least I hope so--I'm saving all kinds of no traditional quilting fabrics for a crazy quilt.