"Fun" and "entertaining" plugins...

I didn't really know where to post this but...

Does anyone know any plugins that are "fun" and "entertaining"? What I mean by "fun" and "entertaining" is where players would spend long hours on the server doing that "fun" thing. CosmicPvP has the envoy plugin (not really entertaining but i needed an example) whilst Treasure Wars has the clue scroll things. I would want some kind of unique plugin but any plugin that meets the "fun" requirements will do.

Any ideas?

 

Check out my AnimalChest plugin. It spawns any spawn eggs placed in chests when the chest is opened. It's worth a laugh at the very least.

 

Try out MagicEgg, a plugin I wrote on request two months ago. It spawns dragon eggs randomly on selectable locations and gives players configurable loot. It's fully customizable, so you could make some sort of treasure hunt with it?