I don't mind the background fabric. I would be brave and satin stitch (machine, of course) around the ballet shoes with a thread with some shine to it - a polyester embroidery if you don't use rayon. If you stabilize the underside with tissue paper, which will tear away, it will work. Practice on a scrap. I think my go to width for satin stitch on my vintage Elna is 2.5 with the length about .5 A blanket stitch, if your machine has one, might be easier but for the shiny fraying fabrics, I'd want the satin stitch. Blanket stitch the black shoes in black.