Say you spot an osage tree with two nice billet limbs. Could a person cut one limb, cut a fish tail splice, and graft it to the other billet limb you did not cut, and wait a couple month for them to grow together before cutting and making a bow? If that works, you could grow spliced on siyahs, and for that mater, organically grow any bow you wish, including some neat mix match frankin bows.