Just a comment about flashes that my wife made. We did use the grosgrain ribbon, but we don't put the elastic around to hold up the socks and the flashes. My socks stay up without the elastic, so we just put a little Velcro on the back side of the ribbons while sewing them together. The Velcro sticks to the sock material and the folded part of the sock covers the top of the ribbon and they don't come out.

DALE.