Some beautiful women painted half of their face or their whole face like a "sugar skull". No matter how gorgeous these girls are, someday they would turn into corpses. This reminds me that all of us are nothing but a living dead. As Existentialism states, death is the absolute threat that forces us to acknowledge the limit of our existence.
Sugar skulls, as the name implies, are skull-shaped sugar. The tradition of making skull-like sugar started from the 17th century. At that time Mexicans pressed sugar into sugar skulls to represent their family members or friends who passed away.   

by Alex Yu 2012