We have started the tradition now of using our last rotation of the year to produce a video. The kids love being in front of the camera and we incorporate it as a lesson.
Then after the last week, I take it home, run a soundtrack under it and edit it, then burn it on a VideoCD. The next week, we make popcorn and let them watch it. Then on Rally Day, we show it to the entire congregation.
Note:
One church did this video idea by creating 8 different activity stations representing the 8 stories they had learned that year, and then having all the kids RUN to each station, and do a RAPID LESSON led by a teach who talked a mile-a-minute. We did it once, and then challenged the kids to do it faster. The videotape of that was quite fun.