What are the Question and Variables for your project?
I would suggest the ride be a roller coaster and
the skeleton would be the frame work holding the roller coast up.
This is based on the definition of "skelton" on this web site:http://en.wiktionary.org/wiki/skeleton
Let us know if this helps.
Hey! I agree with what the previous post said, but also another idea could be a fun house, or haunted house. I dont know the specifics of your project, but the skeleton could be the outside of the house, surrounding and protecting everything thats in it. The inards of the body could be the different attractions. Im sure you could google "Skeleton attractions" and get some ideas. You never know what google can find. XD
Hope that helps a bit!!
I would love to hear how the project came out!