Sorry, no pictures but saw some people assemble a huge green and yellow air pillow object at Black Wall Reach. Put someone on the 'pillow', then get 2 blokes to jump from the wall and send them flying 30 feet in the air!!! Plenty of people watching and they also had a basket ball ring trying to do some dunks!!! Looked like fun!

like this http://www.youtube.com/watch?v=ny05qSUuqx4