Haunted War Drum

Long ago, the most dedicated of troll war-drummers would allow themselves to be flayed alive in order to provide the hide for their precious instruments. While a troll's incredible natural regeneration allowed one to survive such a grueling ordeal, it was a long and excruciating process that drove many mad with pain. It is said that, if such a war drummer was to be slain while playing such an instrument, his spirit would pass into it...