For some reason I can't view the video.
the way we "boost" our event is with Spirit week the week of.
We have a pep-rally out front the school every morning (Parent volunteers, our mascot, we hand out stickers and have all kinds of fun props)
We also made lollipop trophies and handed them out each day to the class that had the most spirit that day (with an announcement at the end of the day so everyone new who won)
I like the idea of a video thought! Maybe we can try that next year
in our School everyone participates. It is done during their PE class time. ( With the exception on a few class that happen to not have gym that day, the come out during their "specials" time)