You can NOT make hash from males unless males have trichomes (which they don't). Hash is made from trichomes only. Probably what others are talking about is making this trashy substance we call, Green Dragon, aka a really shitty form of pot oil (and no, it's not hash oil either as that is derived only from hash) and I guess it's worth making once just to say you did it but most have had their fill of it after that one time and end up doing like the other 99.9% of growers do and just toss out the males onto the compost pile. Their only real value is in making seeds but males themselves do not have seeds, only females make seeds.