Approx 20 to 30 second video clip

Hi
I need a 20 to 30 second clip showing about 7 or 8 different dangerous risky activities. I can give you some ideas of clips I have found but I need them editing as I will be doing a presentation

Ideally video clips which do not have any copy right on them

I think its just to find about 7 clips of say different activities eg. formula one car crash, crossing the road, bull fighting, space shuttle etc. DOesnt need to show any major crash but just want it to be able to give some one wathing it the sense of risk being danngerous

This is a low budget project and should be done by someone who is quick with cutting movie clips and could do it within an hour or quicker.