Of course you should have the obvious roller coaster, a little tram that runs the perimeter of your park that is pushed by a powered minecart. A shooting gallery with a bow and arrows. A fishing pond to pull prize fish from. A hedge maze. Concession stand serving up golden carmel apples and melon slices. A high dive show where audiences can watch Stupendous Steve dive from hundreds of meters up in the air into a tiny puddle of water! Show pigs, show sheep, and show cows all on proud display. And last but not least, log flume ride with wooden boats.
http://www.minecraftforum.net/forums/minecraft-discussion/survival-mode/2372609-journal-the-ballad-of-dirtdog