And giving them the male counterpart of a clitoral circumcision...or, as it might be called, a "de-pee-wee" procedure.
Actually, they should be hung and if you didn't want to hang them by the neck till dead, I am sure something could be figured out. however, Australia now does not believe in the DP. If this would happen one or two times, maybe some people would get the idea that if you want to rape someone, go to a country that the rape victim will be killed as an "honor." instead of raping in civilized societies.