loosely rubberband them or just wedge them near a rock in a low flow area they will attach very quickly like within a couple days. Some people sew them to a rock with a needle and thread like maybe 2 passes through the stalk and around the rock. I havent had to try that method yet because if I just put something touching it, it attaches no problem. You can find an empty snail shell and stick the stalk in the hole that works too :yes: Carrie