People reveg plants after harvest (I never have), but I have read it is done. That may be your best option, then take clones and make one of the clones a mother for your future supply of clones.

I have even read of clones being taken during flower (very early on I believe), but I would not suggest that as it may stress the plant, and it might herm on ya.

Why do you want male POLLEN ?

You only need pollen if for example you wanted to cross Burmese Bumbfuck with Tiawan Titty Twister to make a new strain called Bumbfuck Twisted Titties or something, or have your exisiting buds full of seeds if entire plant gets polinated.

If for some reason you think you need pollen to/for a clone, you DO NOT. Scratch that thought outa yer head. If ya wanna learn to be a clone pro, do a search here. Hundreds of posts on how folks do it using every way possible.

Hope this clears things up fer ya a little.

Best of luck,
b0nger