A YARD STICK - with sharp HEART (or other shape) Near the end makes an excellant OWNERS permanent mark! Practice days before striking the desire spot (I prefer the MONS VENUS) with the solid yard stick end! When ready strike the place very smartly so as to cause a blister. After the blister has puffed and there is clear pus visible - Lance with a steralized needle, Dab with cottonballed alcohol or other astringent! When healed the MARK will be there permantly!