Do you have someone in the military or studying abroad who won't be able to come home for the holidays? Since you probably have boxes of pictures from Christmas' past, gather up a bunch of your favorites over the years and put together a humorous collection of pictures and stories about your favorite holiday memories.
What about when the tree fell over when the cat lunged at it? Or the turkey that was dropped when taking it out of the oven? Or the very bizarre family traditions such as the ritual reading at my family's house of The Cremation of Sam McGee?