A few weeks ago, the university I work at (UCLan in Preston, UK) held an event in association with NASA, the 24 hour water bottle rocket challenge. It was an attempt to set a new world record for the most number of water bottle rockets launched in 24 hours worldwide. A company called Rokit supplied the kits (
www.rokit.com - very cool for kids).
As I'm part of the multimedia team here, I was tasked with filming it. I tried to make simultaneously the most epic and the most naff video ever, with a bit of humour involved, to document the day, and this was the result:
http://www.youtube.com/v/fE3w6QqQXqc&rel=1Here's the main website with information about the challenge.
http://www.24hourrocketchallenge.com/I heard that we smashed the record, but it's still being verified by Guinness and the like, so I can't recall what the number is.
But yeah, if you have a spare weekend, and the sun is out, buy one of those kits and teach your kids about rocketry. It is brilliant fun