I've heard about a store in the US on TV that only makes peanut butter sandwiches. They make their own peanut butter. When you enter, It has huge jars of peanut butter all over the place. They have different kind of peanut butter sandwiches with jelly, banana, etc. I mean why would a person go to place just to have a peanut butter sandwich? I can't remember the name of the place though. But, it was interesting.