I do, only where you cut the mushroom, the little piece that is left will/should grow a new mushroom. I have never had any luck with gluing them due to the oozing they do. I either place the frags into a container filled with rubble rock and after a few weeks they affix themselves to a piece of rock, then glue that rock to where I want it to be. The other option is to hold them in place on the rock you want with some netting aka the veil method. Place the frag where you want it and then lay netting over and secure with an elastic. As for netting you can get a cheap fish net and cut it up or just place it over.