[renowner]

Jammer bone IS an item. I'm not sure how Jammer remains would work, and also think that remains generally are just overshadowed by each other. . .
But I do think half of the monsters not dropping remains is a bit . . . Immersion breaking at the very least?

I'd be all for it.
Even more so if some of them were cloth materials. Lacking Macabre.
I think it makes more sense for Avians with their presumably hollow bones being harvested for plumage rather than bones, same with Jammers and maybe beasts and plants too. All make sense to be more of a cloth or lighter material I think.

Plant remains could be wood, even.