When I first learned about the practice of making death masks of a deceased person's face, I was a little bit creeped out by the idea. But, understanding that this was done in a time when cameras were not available to record one's exact likeness, the creepiness factor can be lowered. Many notable people who have had death masks made include: Tutankhamon, Napolean Bonaparte, Peter the Great, Abraham Lincoln, and Joseph Smith.
This, however, is just plain creepy. There is no justifiable reason to make one, except for the sole intent of being creepy: