Well, my LFS regularly sells hammer frags, so I'd say the answer is yes. As for how, I can't help you there. It looks like they keep the individual stalk intact and frag it somewhere near the base. Truthfully, it looks like they just use the old wishbone technique. If no one answers, I'll be sure to ask how they do it next time I'm there. I think I have a picture of one of the frags I bought in my gallery.