When it gets down to 20 days, I make a cute bulletin board titled, "Let's End this Year with a BANG". For this board, I use 20 brightly colored balloons. I have different activities or prizes in each balloon. Now since I would rather not have field day on a Monday, I usually rig the balloons. To pull this off, I have a number inside the balloon. Once a balloon is popped, I look on my list and find out which prize was won.