I'm using some non drying clay I got from michaels but I don't know what to do when I am done shaping the head
What I mean is how do I make the mold when I am done
na na na na na na!!!!!LOL-- great minds think alike!!!!sorry man, to go through the whole process would be a very long paragraph.
but , there are several tutorials already here and in this section. start combing through the threads and you will find what you need.
if you are wanting to make a pred head latex mask. then search for the user Tonkers. he made a video tut that is most excellent.
if it is for a bio, there are several as well. take your time and learn as much as you can.
if in the future you have more specific questions, then ask away.
EDIT: Clay, you beat me to it.