Maybe you all have come up with the same idea, and maybe some of you are even doing it, but here in Denmark we have a big national TV show trying to collect money to the Tsunami victims. And it just struck me:
We all have exotic cars, and most "normal" people would love to get a ride in them, right?
Why dont we all make local rallies in our hometowns.
Gather 5-10 cool cars and charge 100, 200, 300 $ a ride - and of course donate the money to the Tsunami relief funds.

Get the local paper to run a free ad, or contact your local TV station.
They will jump at it immediately. Sportscars always works on TV.

Just an idea. Im off--gotta see if I can make it happen here!
Take care.