Do check her website and learn about her marbling, printing, etc. on fine fabrics and see her gallery of wearable art. I am lucky enough to have a few of her remnants!
Here on Necklace #43 the covered buttons are accented with dyed mother of pearl buttons, on Japanese chirimen polyester bias tape. The dominant fabric on the buttons is a double-weave of linen and silk; the two layers float on top of each other as separate fabrics that join as one, interwoven, in various spots. For this necklace, I used the fabric linen-side-up, but the silk side is pretty exciting, too (another necklace later!).
And here is another using Sandra's fabric:
In this one, Necklace #44, the silk-covered buttons are accented with little vintage glass buttons, on woven cotton Japanese bias tape.