That sounds possible then, doesn't it? As for a sample-

"So if we found some of those goats and voidblobs? Do they have to be alive?"

There were sure to be remains of the voidblobs around, probably a few stubborn and unlucky goats - or even the chinchillas. But hey, keeping those voidblobs back would be good enough if they could only pick one. Tidus didn't know the work it'd take to make specific talismans, and he didn't want Wangji to struggle with anything too complicated.