Here are a couple:
This one is about $7 (US): [COLOR=#333333][FONT=Verdana]Flicca. It doesn't go all the way down to the ankle, but you could lengthen it.
And [/FONT][/COLOR][COLOR=#333333][FONT=Verdana]Louhi, you have to scroll down to see more detailed pictures.
Good luck, that's a lot of knitting or crocheting to get in before Christmas!