Get a paper artifact & a shoutout! I make a lot of handwritten chord charts, lyric scribblings, production notes, etc as I write and record. You get one! I'll also give you a shout-out in my next public video! (+MP3s +CDs +Credits).
Digital hero! Don't need anything physical in the mail? Cool, you'll get the digital copy as soon as it's done, your name in the credits of the album, a photo of me holding a handwritten sign thanking you, a shout-out in my next public video, plus a personalized thank-you video!