I don't do it every year (have to keep them guessing). But I do them when I have time and an idea.
The first time I changed the theme of the board to match that of our arch rivals down the road. I also changed the board display name. The team colors were royal and yellow and my board was very bright. Painfully bright. Of course the real joke ended up being on me. When I re-imported the tdf for the main page I forgot to uncheck the apply to all forums box and wiped out all of my themes for the other forums. Some of the forums I had a back up of the tdf and the rest I had to recreate.
Another time, I made the main page white on white and the only thing showing was the image in the description for each forum.
Then there's the year that I scrambled up the forum order and switched the display names around so you didn't know which forum you would get.
This year there is a hostile take over of the board. New name, new skin. Evil Empire

Love it!
(sorry Bril I still think its funny)
