*COMPANION QUESTLINE SPOILERS AHEAD.*
Like the title said, the questline for the companions have been completed, and normally I could now drop the glenmoril witch heads but for some reason I can't.
Even dropping them in a dead body doesn't work. I've read that on the other Skyrim forum.
Does anyone know how to un-quest-relate these heads? I'm not so fond of carrying decapitated heads around Skyrim all day.