I was able to take photos of the stage at the beginning of set up, of volunteers loading the mentos into the delivery systems, and of Stephen Voltz testing the set up (and answering all the fun questions from kids) before the demonstration. Fritz Grobe was also there but during set up was on the other side of the stage from my position. There was also a guy there using two phones secured to a stick at about eye-distance apart, taking video of the crowd. He seemed like the kind of weird we'd like to get to know LOL.
The kids were SUCH a hoot. As Fritz indicated the spaces near the stage in most danger of dousing, they ran like little lemmings to the danger zones :-}
(note: I blurred some faces, especially of the children for security's sake)