Being a mortician means getting asked a lot of interesting questions, especially ones on keeping a skull or other memento mori after a loved one shuffles off this mortal coil. The answer is interesting and takes gentle viewers into the arcana of corpse desecration laws. The short answer is that you will need to find a willing funeral home, and it probably won't be cheap. There are even "tattoo recovery kits" for those who want to save a patch of grandma's inked skin.
Image: YouTube / Ask A Mortician