For softies, just cut the coral of with a razor. Typically at the stalk. If you have a small frag tank, through some crushed coral on the bottom and let the coral attach to the crushed material. Then you have easy glueing to whatever you want. A small scale version of this is to put some crushed coral in a small dish or container. Put corals in, and cover with bridal vail. This is an option of you don't have a frag tank.