Hi gramma. Are you a quilter? If so, check out the book "Quilting 101". There you will find a whole chapter devoted to making a sewing machine cover. They use the Log Cabin block, but any 6" block will work. I found the book at my local library and have used it to make at least six of them. You would probably have to adjust the pattern a bit for your FW, but they are quite adorable. If you're not into quilting, there are several different patterns out there on the web; in fact, some of them have already been suggested.
I would post a few pics if I could just figure out how to get my old MacBook to resize my photos....