now that sounds like a familiar accent
ask for a quote if you wish:
cleanlaser.de
(not too far from me actually about an hour... and I need someone half way around the globe to tell me about it... sheesh the internetz...)
Anyways, 1kw Laser...

that thing will not only remove rust, it will instantly remove all flesh from your bones;
actually quite a scary apparatus!
I suspect it's in the UV spectrum, so even a reflection can blind your sight in an instant, not to mention all the second degree (maybe third?) sunburn you get if you forgot UV protective full body gear.
But let me put it this way:
You'll not get closer to a laser gun... and that's a yes, I'd want one too
'sid
[
EDIT]
Oh look, they have a "kiddie version"
comes with a nifty backpack (claimed to still remove rust.. maybe not quite as fast

)
http://www.cleanlaser.de/wEnglish/produkte/backpack.php
THIS!.. come on.. take my money already!!!