I had just sat and added a new set of oncid's to a driftwood mount today, so cool timing! lol I found some natural cracks that allowed me to attach the new plants (the oncid with stiff erect leaves, not the one with the white tag next to it) by stuffing small pieces of spag. into the cracks around the roots. So far the brassavola on the other end from the oncids is growing like a weed. By using the natural holes and cracks, the plants needed little to attach to the wood. I would love to do dozens of driftwood mounts, these are the easiest.
The second mount is on palm wood. You can see the ever shriveling p-bulb that is all that is left from a rescue plant. I had thrown it under a bench and found it growing a keikei a few months later. I placed it on this stick and it's been happily growing since then. The picture doesn't do it justice, the leaves are very long on the oldest p-bulb. And roots wind all over, some in a corkscrew type shape...this one was one of my first successful mounts. I'll put a second pic to show the beautiful shape of the leaves.
Once again, this is a tiny piece of a larger plant. This fell off when I was potting up a new arrival, one of three dendrobiums. This piece loves it's stick which has a mix of spag. and coco-fiber. It was an experiment that went very well. The only problem I have is the bugs have more places to hide on this one and as such I have to spray it more often than my other mounts. I love the leaves on this one as well. So pretty and so graceful...