Vampire Arm Wings

[Vampire Arm Wings] Not the normal on-the-back leather wings, but where the human arms are transformed into a melding of bat-wing and human arm. How you would blend the bat-wing material with the huamn skin is, well, probablty pretty challenging.

Having that in various stages of transofrmation, from hugely elongaed fingers with signficant 'webbing' to the full deal would be a major bonus.