colorful fabric pieces (Derwood, MD)

More than 40 triangular pieces of fabric (all or mostly cotton, I think) in various prints and colors—the attached photo shows some of them before I sorted and washed them. They were originally used as bandannas for dogs after grooming, and they include holiday theme prints, dog theme prints, and prints without a theme. They could be used for a sewing project (quilt?) or maybe by a kid learning to sew.