Vampire ears and teeth on regular sims?

 I made a really cool looking vampire guy, but I want him to be a normal sim but retain his vampire ears and teeth.

How do I go about this?

I googled it and all I could find was some mod to change the ears, BUT I don't want to resort to that, because I want to upload him to the library without him having any "modded content" flags. 

I know it's possible because I have seen a really cool peter pan with vampire ears made by Rhisk and that was not flagged as modded content, and he was not a vampire.

Things I tried that didn't work:

-searched on google for the answer

-typed the cheats testingcheats on and then cas.fulleditmode before entering cas.

-giving him the ultimate vampire cure. (his ears and teeth changed to regular sim.)