Why not try to search for non-coaster photo sites, and submit the photos there. It doesn't matter what kind of picture you enter, right:)? I've thought of doing the same thing, I think they may even have them on services like Webshots, but not to win, but a chance just to put something somewhere. Plus, you look at around at the other pictures on some of those things(MyPhotos in another one, I think) that have nothing to do with the amusement parks, you see good ideas and tips that are useful for photographing the rides. Photography must be a great job(I need to go back to school:().