I agree. Good luck finding a surface that your marks will come off of without leaving a remnant of the ink. It sure won't cleanly come off of skin. And make your own "stamp" to place a mark on a spec? "Excuse me Mr. spectator while I dob my stamp on an ink pad, and get it to your hand before it dries out,.. all before you see me doing it." This effect is lame and is ONE of the reasons I pretty much pass over anything put out by Sans Minds.
I will never buy from them again ,they are willing to trick you rigth out of your money ,can not trust them ,twice I have been burn .they are driving around convert cars laughing all the way to they bank.