Lets Build A Water Rocket

It doesn't look like much but it sure looks like it would be great to build and even greater to set off. I think this would be a great Troop project. It would have to be set off outside and everybody would get really wet now that sounds like even more fun. We will have to get together on this one and see what we need and how we can build it. Here is the link to the website so you can check it out and look over the instructions. See what you think.
http://users.bigpond.net.au/mechtoys/waterrocket.html