ASOS' Curve line has so many cute and reasonably priced holiday dresses this season. Here's the one I ended up picking:
Unfortunately, I was too busy enjoying the party to get proper outfit photos. I wore it with a flower headband I just picked up at Old Navy. The headband isn't on the website, but I'm sure you could find it at your local store or something similar but unique at Etsy.
For shoes, I went with with red velvet Gap City flats from last season. The maroon version of Old Navy's velvet ballet flat would work, or a metallic gold shoe.