For many years I've had my eye on antique sock stretchers but I never looked at them as a Christmas decoration.
If you don't believe "sock stretchers" are a thing, Google it.
They're from the early 1900's when most socks were made out of wool. Wool socks took a long time to dry and like anything made of wool, when washed they could shrink. So the wool socks were put on wood forms to stretch and keep their shape while they dried, hence sock stretchers.