We just saw some footage on the news from this year's "Batalla de Vino" that takes place every June 29th in a town called Haro, in the Rioja region of Spain. It looks like the Tomatina, except much safer and much drunker. We've got to try it! This year, they used 50,000 liters of wine (that's a lotta bottles). Check out these links for pictures and information:
I found this video of a previous year. It looks like a it should be a laundry detergent commercial, only in reverse. See how white everyone's clothes are going in?
The video says that there are more than 17,000 participants and they use almost 100,000 liters of wine. The TV today gave me the 50,000 number above. Either way, that's not a bad liter-to-person ratio. Those are snails ("caracoles en salsa") that they traditionally eat.