Katharine Gammon 06.15.12 12:25 AM CharityBuzz, an online philanthropy organization, is offering its wealthiest clients chances to drop big cash donations. In exchange, you get to spend some quality time with our nations hottest celebrities. We’re giving away 5 tickets to the Innovation Festival! Enter below. I’ll also get special updates regarding the Innovation Festival Send I'd also like to receive the Fast Company Daily newsletter.