Actually Kitty, I have lots of rubbings taken from graves hanging in my living room! I've got a truely lovely celtic knot that was taken from one of my ancestors tombstones.
My husband is really into ghosts, and ghost hunters. A few years ago, we went to a cememtary with a tape recorder. I must say, what we heard on that recording changed our minds about ghosts!!! Anyway, Cemetaries are in memory of the dead buried there, and how would they be remembered if we didn't spend time to read what is written on the stones?