Originally posted by Nascarman:

Originally posted by FissionChips:

Bone bolts cost 8x bone & 2x feather to make 20 bolts, yes? 10 mats to make 20 items? Well, the obliterater turns 10 of any item into one coal, so for the cost of a few feathers you could double your coal yield from bone.

Except 20 arrows/bolts equal 1 coal, not 10, the devs thought of this already and prevented this from being profitable