It'd be amusing (though painful) for a while, but why mark your body with anything Mormon? Isn't the mental scarring bad enough? I'm absolutely certain you can get JS toilet paper.
With work the mental scars subside and finally wither and dry up. A tattoo on the other hand is somewhat extreme even if you did do it to be disrespectful. How would you explain it to your grandkids when your changing at the pool? Is it worth marking yourself with the likeness of a false prophet? I would hope not.