Soom's faceplate system

I wasn't sure I would like it, but it is very easy to swap out eyes and to get on and off, plus the headcap doesn't fall off. I can also see how this would make having a "sleeping plate" be an option for Soom dolls (which they have never offered so far).

Here's the headback on the neck:

It uses the resin "horn" thing instead of an S hook, but it's possible if you lost the horn, you could put in a big S hook there. If you had an older head, it would just fit normally on the neck with an S hook.