Perhaps we should come up with another project. I'm sure someone else could come up with a better idea than me. But, just to get the ball rolling, I'll toss out the following:
The theme for December could be "A Journey." You could document any trip you make. Maybe it's a trip home for the holidays. Or maybe it's a Saturday bicycle ride to the beach. Or a visit to the post office. A trip from one side of the yard to the other. Or maybe you could get creative and interpret "A Journey" in your own way.
Being that December is often a busy time for folks, we could keep this thing loose and flexible. You could post one "journey" for the entire month, or one "journey" every week of you desire. The number of photos per "journey" would be up to you.