krazy glue gel has worked like magic for all of my mushrooms. I have a whole large rock of thriving rics, and a wide assortment of different mushrooms. Just dry it off, krazy glue gel it to the rock, blow on it, and place it back in. Never had a problem. Oh yeah, put the mushroom in the substrate for a little while until it attaches itself to the sandbed, then glue that attached sand to the rock of your choice.