There are a bunch of oddball genital tags and they aren't really linked together. If you've got a thing for them, it's hard to search for them or even know they are there until you stumble across it. And if you spot one that isn't tagged, it can be hard to find the right tag for it. Because they are so scarce I imagine most people don't know them, which makes tagging them properly difficult. I propose they all implicate a single tag to organize them. Unusual_Genitalia is already in use, so perhaps a making new one such as Atypical_Sexual_Feature would be more appropriate. The following is a list of tags I'm proposing implicate the blanket tag:
Hand_Pussy, Snake_Penis, Prehensile_Penis, Prehensile_Clitoris, Vaginapenis, Tail_Penis, Tail_Vagina, Tail_Maw, Dick_Nipples, Pussy_Nipples, Nipple_Mouth, Udder_Balls, Intravaginal_Penis, Intravaginal_Pseudopenis, Pseudopenis, Penis_Tentacles, Crotch_tentacles, Tentacles_from_pussy, Tentacle_Maw, Tentacle_Pussy, Tentacle_Ovipositor, Ovipositor, Penis_tongue, Penis_with_tongue, Tongue_Pussy, Pussy_Tongue, Eargina, Chest_Pussy
I'm pretty sure there are some more, but I'm having trouble remembering them. And there very well might be a bunch more out there I just haven't happened to stumble across.