To all the people who have an interest in the dead who have ever been improperly lumped in with Dahmer, this ones for you. Please know that I love nature and science and my association with death is not disturbing or morbid. If you are not comfortable with death, decide now or don't proceed. Always practice proper hygiene when working with the dead.
If you are genuinely interested in skulls but need some basic knowledge, I recommend buying this book. A Key- Guide To Mammal Skulls and Lower Jaws is an excellent book that will inform you about skulls and identifying them.
Step 1: Materials
A jar (or other receptacle that is relative to the size of your skull)
A good razor blade
Gloves (or in my case, plastic bags)
Your specimen (duh!)
Face mask (optional but useful)
Crazy glue (if you plan on fixing your skull in a position)