Take a load of old junk, add in some community spirit and what you get is a brilliant spoof of the latest Guinness ad 'Tipping Point'.
(this was a naughty self-link but the poster was polite about it, so re-submitting. Plus I love Guinness)

Original Siftalk discussion: (http://www.videosift.com/video/Tipping-Pot-Guinness-Spoof)