OK well let's start with the obvious coaster/theme park category (assuming people haven't exhausted that already). Some ground rules: it has to be a song you actually like not just one that fits the theme. I refuse to listen to ten lots of Ronan Keating's Life Is A Roller Coaster! Perhaps we should say up to 5 songs so it doesn't matter if you can't think of that many. Better to have quality over quantity. The song/artist can fit the theme in name or in content - as long as it's related in some way.
Off you go.