If I was to be proposed to during the December timeframe in Disney, I'd want it to happen either in the snow, with the castle in the background (makesure there's a photo person nearby), or there is a tunnel of lights at the Osbourne lights that was one of the most magical places I have been. There's a photo guy there too. You could wait in line to get your photo taken and then surprise! Those are the nice free ways vs getting Disney to set it up for you.