So here's something I worked on furiously for a few nights. Liberating the Realistic Mannequins for CAS! None of their faces have any expression, they're just this creepy blank stare no matter what they do. I was tempted to try to make their faces move, but ...
1) Doing so would involve a bit more work than I'd like and
2) they really weren't meant to.
In the Sims2 they were just an unlocked skin, right? Well, same here.
These suckers have all the swatches they're supposed to. They should be basegame compatible. It was harder than I thought - getting them unlocked form the CAS. They really didn't want to work, but ultimately, they do.
They can be found in skin details.