I wonder though... and maybe not given the PITA that you find a prop genital to be.. but wouldn't there be some validity to investing the effort into making a genital that can adapt very well to a wide range of figures and therefor people can leverage the widest range of existing content to go with their genital equipped figure.  Just thinking aloud here but it almost seems there would be less headache making that one prop work across multiple figures than there would be in trying to launch a new and disinct figure and rally enough support around that new figure to make it actually take off.