this is perhaps one of the funniest clips i've seen in a while. it's worse than janet's BREAST (which i still haven't seen).
you may also bounce your balls while you pluck your twanger or if you don't have any balls you can ask a friend if you can play with his.
http://www.funny.co.uk/fun-and-games/art_170-1865-Video-Clip-Rainbow-Innuendo-Episode.html(16 MB)
smaller LQ version:
http://www.keenaschips.co.uk/index.php?page=articles/misc_rainbow(2.3 MB)