Steps to making a custom pose.

[Taylor]

I have the following figures: Buzzball Mag 7, Footballfigures.com figures, and Fab 5 figures. What are stwep by step instructions to make a custom figure. What do you look for in a custom. If you cut off an arm, and you want it at a different angle, how do you mold it like that?
Thanks for any responses.
Michael