This is an udder I've been working on for the past couple weeks. As it is based entirely on UUNP HDT (to the point where the udder is literally a modified copy of the model), it's going to be a little tough to port it to other models. In any case, though, I'm providing what I can to make it possible, including the Outfit Studio files and the GIMP image I used to make the texture. I've gotten a report that it works with CBBE with minimal seam, so it might work well. Time will tell.