As far as i know it attaches itself to objects the same way as other mosses, simply place the moss onto the coconut shell with some thread or even a pebble on top of it, to hold it in place, it soon grows rootlike structures called haperons which will attach itself to the surface of the shell.
Its a very nice plant, i have looked into growing it, i do know it doesnt like tempratures above 78 degrees and it can do well in low and highlight, and it doesnt really mind hard or soft water either.
