bubbling: it's the new ting

(see http://forum.bodybuilding.com/showthread.php?t=127185813)
Burning Man is weighing heavily on my mind. Can't make it this year, and I am absolutely gutted.
Some crackers from last year, taken by Jon: (http://www.flickr.com/photos/jonandesign/sets/72157622206473089/)stop, drop and roll