How to make a replica skull?

Hello, RPF. I have lately been wanting to learn how to replicate a human skull in utherante, resin, hydrostone, or the like, but cant find any good tutorials. I specifically want to have the details of the skull preserved, such as the Zygomatic arch, Nasal canal, optic nerve openings, and I would like the skull to be hollow. Is there anyone who might know how to do this? I have already looked high and low for tutorials, so please no links. Any help would be appreciated. Thanks.

Hi cooperevans001,

Are you looking to learn a "new skill" or just want a finished skull using the 3D modeling and printing method?
Doing it yourself by hand is always more satisfying and fun, and you learn something I feel is becoming more
of a dieing art. Hopefully there are still those who like to do it by hand and willing to share their technique or
active links to tutorials (also hard to find these days).

I would like to take a replica skull (Or a real one, if I can find one) and cast it so that I will be able to mold it in resin, or whatever I want.