I am sure everyone has noticed at some point how terrible are machine translations. It’s pretty tough to get a descent work done between two more or less related languages. But when you have to do the translation between two culturally opposite languages, you know you are in trouble.
Engrish.com is a site that collects all those funny bits Japanese people write in English. I am pretty sure there is a similar site for those who laugh at the rest of the world trying to talk Japanese.
Have fun. :)