I was watching paw patrol with DD earlier and almost all the toys being advertised in the break had some sort of excretion special features - a doll with a colour changing nappy, unicorn poop, the dolls that cry and wee when you squeeze them and my personal favourite: the unicorn that will either puke or poop when you squeeze it and the irritating accompanying jingle that got stuck in my head.
I'm not normally prudish about bodily functions, but it seems to be everything! Am I missing something here? Do kids actually love this?