Here are two people giving away gift tickets if you're worthy of them. Please don't contact me, look at their websites for more info.
Win a Ticket to Burning Man 2011 - Submit a video (via Vimeo) that explains what act, service, or rite of passage you pledge to commit if you win a tickethttp://www.firstdonothing.com/
(I know him and the contest is real, it's a different approach to something he does every year.)
One Burning Ticket - http://oneburningticket.wordpress.com/
"Here’s the deal. I have an extra ticket to Burning Man, and I want someone wonderful to have it. Yeah, for free. It’s a gift ticket, there’s no monetary value associated with it.
I don’t have a lot of time to volunteer this year, so my intention with this ticket is to give it to someone who will be a kind of proxy- who will interact and create fun and participate joyfully. Your smiling face will be my gift to Black Rock City this year."