Ordinary Day

Bwahahaha! Yes, the Scarf has to be in there somehow. The question would be how, since there's no accommodation for a scarf-type object in vanilla Nethack (don't know about Slashem). You'd have to spin off a new object type, perhaps, or else have it occupy your amulet slot.

Either way, it should give you a Charisma bonus when you're wearing it. ;)