Fraggin the colt will be easy... getting it to stick to anything, and I mean anything, is a challenge. I've tried tooth picks, nylon ties, you name it and the only thing that worked was the colt slithering off and wondering around the tank in the current. Try some veil (think wedding dress) or something with lots of holes for flow that you can secure to a piece of rock and wait for it to attach.
However, the best method is to place some rubble close the colt and wait for it branch out and to attach, then prune as desired. This method is also best for zoo's IMO. It requires no glueing and the trauma to the corals are minimal, though it does take time.