This is one of the simple makeup techniques where you need to mask your face entirely by giving a white shade that appear like a skull.
Mix the corn starch and water in such a ratio of 2:1 and add little cold cream and stir the whole part nicely. Add food coloring to the mixture until you get the desired color.
Wash your face gently with cool water and dried it off completely. Apply a thin coat of cold cream covering the entire portion of your neck. Using cotton balls pat the cornstarch over the cream; this makes the makeup to stay long for hours together. Using makeup brushes gently apply the above made mixture to the entire face. Allow it to dry for a while; you will get the exact skull look.