Christmas Spirit Week?

At our school we have a Christmas Spirit Week. I know what I'm wearing for all of the days but Thursday...which is dress like your favorite Christmas Special character. I wanted to be Lucy from Charlie Brown Christmas but since I'm no good at sewing and I can't seem to find a dress for that.... Or maybe Cindy Lou Who but I wouldn't be able to make a hairdo like hers. I was also thinking of dressing up as a caroler from A Christmas Carol. Does anybody have any ideas?