Well, I've not got round to doing it yet, doubt I will. You could always put some ripe male flowers in a bag, and put that bag over the desired bud, but I'd imagine the movement of the bag being taken away, would no doubt mean "escaping pollen". It'd really be best to take a clone of a female plant, induce it, remove it from the other female plant or plants, and pollinate it that way.
Better safe than sorry, eh?