bones:  who was it that carved a flute from the shin bone of their enemy, and make them play it while they were still alive?  bird bones are hollow, of course, so you could cut tiny holes and have them sound notes as they fly, wind instrument to accompany their voice.  when I die I want wind chimes made of all my bones, and my skeleton hung jangling in a large and open window, whistling a song about death, crows tapping rhythm on my skull.