I have a hooded onesie kicking about, that I managed to rig (okay-ish) for Alyson2, modelled and rigged using Lyrra's Alyson2 developer kit as a starting point.

Pretty sure I have retained a version without any attempts made to add Anastasia morphs.

Not yet really finished, but it might serve for an experiment :)

If you're still stuck later, I could send you that... I would hopefully get a chance later tonight to dig it out... as I say, pretty sure I have a version without any Ana morphs added.

I was going to make it a freebie at some point down the line if I ever finish it. Maybe with the new Fitting Room I will! I'll definitely be having a go at fitting it to Rex, Roxie and whoever else myself, come the 21st! :)

You could possibly, quite easily remove the Ana morphs from another freebie piece, for the sake of the experiment? Just make a copy and then delete the applicable morph channels perhaps?