Heres a video of one running. It seems to be gobbling fuel at the rate of knots.
http://www.youtube.com/watch?v=ZhdZLGTP-2w
If you're interested in jet engines and how Rolls Royce produce them you may find this worth watching. Theirs are somewhat larger.
http://www.bbc.co.uk/programmes/b00t0yx9
I don't know if people outside the UK can see this. Its an unashamed plug for RR. I understand there are other - lesser - companies in the world that make something along the same lines. GEE or G I think they call themselves!