Yep. It's a vending machine. The rules are simple, you put in a coin and the poster below you tells you some random, hopefully funny thing that pops out for your hard earned cash.

Example:

Me: *puts in coin*
~~~~~~~~~~~~~~~~~~~
Random poster below me: You get a kick in the face by Skipper. (You should learn to expect the unexpected)

Random poster below me: *coins*
~~~~~~~~~~~~~~~~~~~~
Me: You get Bob the pinata.

Etc. Etc...

EDIT: Due to the increasing number of really, really random things (which is something I should have edited a loooong time ago) All things must be POM related.