A slight change of plan

Hey Guys, You may have heard that I will be trying to break two world records of mass participation in Germany. After careful consideration, and the fact it's been almost impossible to organise (I'm in Thailand, I don't speak German and I don't know anyone there) I've decided it would be better to attempt them in England instead. I will arrive in England in October, so anyone that's interested in joining in or helping to organise this event please let me know ASAP. Any suggestions as to where to attempt it, where to get 3500 pillows from, and any other suggestions would be appreciated. The attempts will be the longest Mexican wave (around 7000 people), and the largest pillow fight (3500-3700 people). Also I now need an alternative challenge for Germany, any suggestions?