Spiderweb 9 1/2 inch block. All cotton fabrics. Went online and found several spiderwebs, some easier/quicker than others. Ended up combining two, hence the "mistakes." Chose a silver fabric for center because it resembles the silver of a spider web. I will definitely continue this block and make a couple of quilts-wallhanging, throw, pillow. Great stash buster and plan on making blocks for specific scraps; scraps from first two book BOM, fabric that is 60 or more years old, fabrics from gifts I made for grandkids. Spider is the unexpected. Fun block.