Some places offer temporary tattoos that could last a few weeks. This might be the better option when you might consider going on vacation at the beach.
The second roller coaster tattoo was Big Bad Wolf, since it was my first roller coaster ever and was taken down. That I got on my left leg by the same artist that did my Kingda Ka one and it looks amazing.
Roller coaster logos make great tattoos because the designs are made to stand on their own. It would be hard to melt them together into a sleeve or something but as a stand-alone image, they're perfect for it and can be modified so that it doesn't look EXACTLY like the logo if you don't want it to. The only people who recognize my Kingda Ka one are people who have been to the park and are familiar with that particular logo, otherwise people just see a very colourful, decorative golden sun with a tiger in it.
I already know my next one will be a watercolour style piece for Alpengeist. Nothing wrong with representing your favourite rides!