Really, everytime I hear the advice to burn a defunct bow or reports thereof, it's braking my heart.
I just love to cut them up (yummy nice straight-grained limbs) and make all sorts of stuff from it. It's always prime wood.
Boxes, spoons, pottery tools, many handles, figurines, atlatls, splitting wedges, arrow foreshafts, kids bows, a simple xylophone, garden stakes, I made them all from discarded bows.