OK, this is a toy rocket launch, but it is really cool! My brother is the mad scientist of the family and when growing up, he was the one undoing stuff to find out how it worked - clocks, radios and in particular his toy robots!
For his birthday awhile ago I bought him a toy solid fuel rocket. These are absolutely awesome and the sound incredible! When you light these puppies off, the whole park will look in your direction. First time my brother launched this rocket, it ended up in some guys yard as the winds aloft blew the rocket some distance from the launch point - opp's!
So what does my brother do not being content with the standard fit out of this off-the-shelf launch system - well he has to add a $6 camera from China! Here's the result which I think is UBER-COOL!
In your face NASA!
https://www.youtube.com/watch?v=PLH3PsQf-eo

It's purely an indoor flyer but it's great fun. With the bigger battery (160mAh) fitted I get 21-22min flight time. It's not overly fast but then you don't want something too fast indoors anyways