Alrighty then, in a fit of over-eagerness, I did yet another complete rebuild.  Seen in the picture is the brand new Twin Lekku model.  Both tentacles Easy-Posed, and parented to a small object mesh that sits inside the model's head.

They are displayed on my brand spanking new Twil'Lek head morph.  Unfortunately the merger of the head and the tentacles isn't going to get much better. The back of the head has a lot fewer polygons than the front so it's not easy to get a neat junction like you can with, say, the DAZ horns and associated morphs.  The only way of making it seamless (or close enough), short of massive polygon pushing on the head (which I have not the time nor inclination for) would be a skin cap.

Still, it's not too bad and if someone did want to make it look seamless in post, it's a lot easier now than my previous version.