Well, during the Spooktacular he started off with a masquerade mask styled like a timber wolf. He then ran into a rosebush and spent most of the night as Phantom of the Opera. Later as the blood dried he took off the mask, still pretty scarred, he went full Ghost Buster/Luigies Mansion.
So, you know, if there's anything in there that strikes your fancy, I don't really have anything more specific than that.