You may be dead, but that doesn't mean the hijinks need to stop. The Talking Tombstone is quite possibly the most distasteful and tacky addition to any dead person's repertoire, but, oh man, it could be funny.
Cheer up, you silly mourners, and listen to my deceased voice insult your mother from beyond the grave. This tombstone will set you—or your life insurance company—back $5,000. But that isn't too bad considering you are getting the last word, for all eternity. Oh ho!