Bulletin Board
You could have a dark blue or black background. Snowflake border or something snowy. I spray my bulletin board paper with that spray snow. My title usually is "Walking in a Winter Wonderland". I do lessons such as mentioned earlier--snow, weather, penquins, other animals--animal tracks in the snow is really cute. Also, you could have mittens and use that theme. Hot chocolate ideas--mugs with a title that says "Our work is HOT STUFF!". You make a fake fireplace and hang stockings for Christmas and later use it for candles, etc...Also, make the bulletin board with the dark paper look like a window with snow outside....Hope this helps...