Ryan McAvoy said:
It would be great if the whole Hoth sequence was rescored with Chrismas tunes as if that's why it's been snowing and not because it's an ice panet.
It could be piped in on the Hoth-Base intercom (Like you hear in shops) and heard over the cockpit radios in the battle.
If you do go with this idea (which is an excellent one, BTW), I would highly recommend It's Christmas at Ground Zero once the Imperial attack begins.