I was on Reddit when I say this and thought It might be the sort of cured item you might find in the harry potter world. My first though was Fem!Harry being sucked into a  cursed clit box while in Borgin and Burkes and Draco sees her get suck into the box and manages to buy the cursed clit box with Fem!Harry inside it.   But then though that that is a bit boring so instead of Fem!Harry being suck into the box maybe have it work like a Switching spell were Fem!harry  clit is in the box