My brother is growing a “mo” – a moustache in Australian slang – in November.
There’s a site called www.movember.org that explains more, but basically you start with a cleanshaven face at the start of November, and grow a mo by the end of it. You get sponsored to do it, with the cash going to men’s health charities.
I vaguely thought about joining in, but I think it might be counted as cheating to shave off part of a beard and end up with a mo.