Movember (a portmanteau of the words 'Moustache' and 'November') is an annual month-long event involving the growing of moustaches during the month of November. The event has been claimed to have been invented in 1999 by group of Australian men from Adelaide. [Source]
Although not raising money I wanted to participate after a few colleagues brought this to my attention in my office. So far the reaction has been muted, although my children all look at me with a look of disbelief. Least impressed so far has been my partner, she has vowed not to kiss me until I shave :)