On October 8, Scarlet Crusade server, there will be a running of the gnomes to booty bay. Make a pink haired gnome and join in the run.
Times are: October 8th, 8pm CST on Scarlet Crusade-US 8pm CST/ST (That's 6pm PST/9pm EST)
The original thread on the WoW forums is here:
Their blog is here:
It looks like a pretty neat thing to do, since people will actually be donating in support of this.
Just thought I would pass the word along. Hope to see you there. :)