Ouch, you found out the hard way that you don't usually wash a quilt until after the quilting is done and the binding is on. You might be able to salvage those bits and pieces by putting them in the center of a string quilt, built on a foundation. Consider this - cut some muslin squares just bigger than your largest pieces. Put one of your pieces in the center of the square, and add on to each edge of it with black fabric (or any other color that makes your bits and pieces really pop). Trim the squares, put together, and you just might come out with something really beautiful. It will certainly be unique. Don't try to keep the lines straight - let them go at all angles.