Where can I get a domestic demon of my own?

I need one for a school project. Can anyone direct me to the eldritch incantations necessary to summon one? I've already tried Amazon and Ebay for the demon itself, and Google Books doesn't have anything except some recent crappy translations of some old Akkadian sh!t that I've already tried.

Oh, and don't send any of those stupid Dr. John Dee spells. Seriously, that crap is like the Rick-Rolling of the dark arts. And I mean that literally; it took me forever to get Rick Astley to leave last time I fell for that.

If Cytherea was a vampire, would she squirt fountains of blood when she orgasmed?