The Ninja Underground Shop
 

I've seen people ask for the hats located under a shop, I hold your answer.

The first thing to do is to look for the hat shop right between start and Mafia. Enter then grab the pot on the left (theres 2). Enjoy your rare hats.

That thing is placed there for many years

:0 I've been looking for this for ages, thanks :D

at least show pics, what kind of lazy ass guide is this, no +1 rep for you.

Love how people call hats or items that you can buy "rare".

These pictures should help. http://imgur.com/a/8KuwR I am on my iPad and it wouldn't let me attach the three pictures, sorry.