I want to show you a small physics sandbox you might be interested in. It's called Phun, it's a -very- customizable physics game, lets you build all sorts of cool stuff. I recommend this for all ages, you can spend hours on it. Plus, it's free!
Here's the link: http://www.google.com/search?sourceid=ch...F-8&q=phun
I'm working on a project in phun, I'll upload it once its finished :).
