<Enters The Darks Citys resident leatherworker...>
I presume the effect you are looking for is human skin, yes?
So you need pigskin, which is not always easy to find. (we eat it.)
I have some pigskin, its beautiful stuff, but not cheap. I could have a word with some leather dealers.
how much do you need and what colour? I may have something suitable, but it will have a high trade value, I warn you.