For some people winter is a horrid time, but others really enjoy the season as it's a chance to huddle in the warmth and light candles.
If you're the second type of person then you'll probably enjoy the December Feeling theme. Install this onto your Windows Mobile device and you'll get a lovely festive background image of a blue candle surrounded by holly and shiny baubles. The theme also includes a transparent Start Menu bar and it changes the navigation and status bars to a dark blue color.
It may not be the most exciting theme ever but December Feeling makes for a pretty seasonal skin for your Pocket PC.