Today I tried something I have wanted to for ages. I cut a mass of selvedges - you know, the pretty parts with writing and little coloured spots - and stitched then to a piece of foundation fabric (I used quilters' muslin). They are easy to overlap - place the woven edge over the cut edge of the previous strip and stitch a line through all layers. This is the square after I stitched a variety of strips down.
Then I cut the square into four smaller squares. I placed a selvedge square with a plain fabric square, right sides together, and sewed around three edges. Turn them inside out, stuff with offcuts of batting and stitch the seam closed. Here they are - pretty little selvedge pin cushions. Aren't they fun?
Karen Griska has other ideas for selvedges on her website and good basic instructions for sewing them to foundations. She is publishing a book about this very topic later this year.