Every year, every wieden+kennedy office has a Founders’ Day spectacular, on or around April Fools’ day, to commemmorate the founding of the agency. It’s not just a party, it’s a treasure hunt / bonding session / low-rent version of The Apprentice. WK London’s 2011 extravaganza took place last week and had a royal wedding theme. Here are a few of the many pictures from the day.