On the Sewing with Nancy series I have seen a very simple Nine Patch with Rails and solid squares made from Silk Deupiony (check my spelling). There were no more than three colors used, but turning the silk in different directions gave the appearance of many colors. This had the over all appearance of a very expensive designer bed cover. This silk is rather expensive, (at least for me) but places like JoAnns send 40% off coupons in their mailers and I have found these coupons on line. There are certainly no curves to cut or sew, just straight lines.