Use it as a bird feeder
It may not feel like it at first, but eventually even an old stocking will attract the prettiest of new mates. For instance, pop a jam jar lid into the bottom of the stocking and fill it with thistle seed. Then, if you like, poke a twig all the way through the stocking just above the lid, for an optional perch. Then knot the leg end of the former garment and tie it to a branch or birdhouse. In a short time plenty of lovely birdies will come to nibble at their new favorite hangout.