Nothing funny here, keep looking

I came across this very fun video of musicians playing instruments in some uncommon ways.  They really inspire me to want to look at making music in different ways. [youtube http://www.youtube.com/watch?v=psP0XgTI2VE?rel=0&w=420&h=315]

Which musical act in the video was your favorite, why?  Did you recognize any of the music or instruments shown in the video?  What are other ways that you have experienced humor in music?