WHY Skeletons?
Skeletons represent the core of our being.  Beyond the soul that departs when we pass, beyond the flesh we present to the world, our bones live on.  They are the physical record of our passing.  What will YOU leave behind when it's time to go? What imprint have you made on the world with the precious time allotted to you?
What exactly IS "DAY OF THE DEAD?"
From Wikipedia:
"Though the subject matter may seem morbid from the perspective of some other cultures, celebrants typically approach Day of the Dead joyfully, and though it occurs at the same time as Halloween, All Saint's Day and All Soul's Day, the traditional mood is much brighter with emphasis on celebrating and honoring the lives of the deceased, and and celebrating the continuation of life, the belief is not that death is the end, but rather the beginning in a new stage in life."