First, cut the feet off your knee-highs. I left enough at the ankle to try to still use the socks as anklets. To the right, you see some sweater sleeves I cut off and will try to use as well. They are wool, so they'll be warm for winter!
Next, cut some elastic to about the same size as your raw sock edge, plus 1/2 inch seam allowance. I happened to use foldover elastic here because I had some extra scraps around and it's really soft.
Next I sewed my elastic into loops...
Then I turned my sock inside out and sewed the sock to the elastic, right sides together, pretty close to the edge. Make sure you give it a good stretch as you sew!!!
Here's a pic of the elastic sewn on. I usually just leave it like this, with the elastic flipped inside, as shown on the left. To finish further, you could topstitch after flipping the elastic inside the sock.
And here is my handsome little model!
(Sorry - this pic wouldn't turn for me!)
Please leave a comment or question if you have one!