We went to the same fairground as
namllihs and here's a couple of shots that I got. I find it really hard to get the right amount of blur to make it look like exciting movement and not just useless photographer but shots taken with extremely fast shutters don't really get across the vibrancy of the event.
There's a a few more on a similar subject on my
site but these are the ones I was happiest with, happy to get some feedback, feel free to pimp if you can do better.
Space Roller
Hanging Around
Dodgems