I used denim shirts and up cycled them to make this large coaster for my coffee table. I stitched the triangle scraps onto 2 layers of denim shirt fabric with a piece of cotton batting in between. The quilting is just where I stitched the triangles. Then I stitched around the outside edge and clipped to let it fray! Washed it and dried it so the raw edges would fray too. It measures about 10" X 10". It could be used as a hot pad also.