My version of Sandstone comes from a photo I took of Uluru, or Ayer's Rock, on our last trip to Australia. I used curved piecing with freezer paper, ala Caryl Bryer Fallert, and stitched like crazy (ala...me!). Except for the little insert of stripey fabric on the right side of the rock, all other color variation on the rock was done with thread. The only things missing from the photo/quilt are the flies that continually buzzed around our heads, which were protected with nets.