I have tattoos on both arms, my back, and one leg. If I were going to make a generalization about tattoos and stuff engraved on guns, it'd be that if I wouldn't have it tattooed on my arm, I don't want it on my pistol. If I were going to get some comic book character's logo inked into my flesh, I'd sooner get The Bat Signal than that lamoid Punisher skull. That'd also relieve me of the idea of defacing a gun,too, as Batman hasn't used guns since about 1940.