Ninja,
Take a look at the following, which a member alerted me to in a private message (FAIR WARNING: please do NOT click if you have a low threshold of acceptance for very non-vanilla sexual practices):
Review of Aron's Rod
It looks like some of these sweet and innocent boys really are catering to scat fetishes. Maybe this is becoming common in Japan? How long have you lived abroad?
Anyway, I personally have no interest whatsoever in expanding my personal limits to include shit. But I find it interesting that maybe it isn't viewed as so "fringe" these days in Japan. Maybe 50 years from now, Thai boys will be shitting all over each other too (thankfully, I'll be long dead by then).