An abundance of tomatoes turns into a food fight festival in Spain every year. The event is called “La Tomatina.”
It has been so successful that there the city of Buñol is now selling tickets to this event and only letting 20,000 people join in the fun that will last just one hour. The cleanup process involves the city cleaning the street with firetrucks using water from an ancient Roman aqueduct which, due to the acidity in the tomatoes, leaves the streets very clean. The messy fighters go to the nearby river to clean themselves. Some residents stand by with a hose in hand to rinse passing fighters off.
Take a look at this messy fun: http://www.latomatinatours.com/