and some mobs don't even have a skin/scale on them (they're naked

increase the number of skin/scale that we could get on the mobs will be much appreciated.
Example.
1. with higher butchering. we could get [number] of skin/scale per mob.
2. except for dropping "one (1)" skin per mob, make it "random". like 1~5 skin per mob at a time.
Poll been made, please vote.
if you voted for three. please tell us why

Edit:
Note that the above example will work only on low lvl mobs below man-scorpion.