Should I make my own CreepyPasta charater?

Like, before I knew who Nina The Killer was I was going to do a Fangirl but that's taken..
I was thinking of somebody who likes a body part.. But that's like Eyeless Jack and Kidneys.
I need help. Please don't make familiar to a CreepyPasta because that's taken, basically.
And I need a nickname. No "the killer" cause there is already like three CreepyPastas like that. And I mean, please. Anybody can think of that!
I need a story line, too.
Thank you! -Lucy.