I got some pictures together on how to mesh the Mono onto a rock.
You will need some mesh (shower scrunchy) a needle and thread, styrofoam board, tooth picks, scissors, a rock and enough of the plant to cover 3/4 of the rock.
Stretch a piece of mesh over the rock so it looks like this. Cut it 1/2 in wider and longer to make up for going over the edges of the rock.
Stretch the mesh out onto the foam and tooth pick it in place. Take some short pieces of toothpicks to hold the rock up off the mesh and foam about 1/4 inch. Run some thread through the mesh on both ends so these can be pulled tight later.
Spread the plant out all over the net... this was not enough.