/cgl/ - Cosplay & EGL

Need help in a casting project im doing
I need a cheap and easy way to make a cast of my face to make prosthetic, skull-like cheek bones. Im thinking the plaster of paris brand, but im not sure and have never done it before.
Id rather do it on my own, but I do have some people that would be willing to help me plaster and such. Any input would be appreciated