Donate your sperm and get a ticket to a music festival. That's the deal offered by Sperm for Tickets
Or rather, that was the deal. If you visit their site now, they state that the response far exceeded expectations, so they're temporarily calling a halt to the invitation.
But I'm pretty sure the offer never was for real. Not that the idea of giving tickets in exchange for sperm is that outlandish. Instead, it's the delivery method that seems bogus. The site claimed donors could send their sperm via mail:
we have set up an alternative method for donations by using specially developed donation containers combined with a fast courier network to offer a mail system. The patented container is a new discovery that was made by our research and development team, which allows samples to to stay fresh for up to 3 days. We offer a worldwide courier service using DHL and UPS that guarantee delivery times.
blog has traced the site to a Dublin-based marketing firm called Area52. Evidently it's some kind of publicity stunt.