Slike - Given time, most plants can be "trained" - when my vanda roots get too long, they get wound up and around the plant, taking care not to "snap" them (they're similar in tensile strength to phalaenopsis roots). I haven't yet worked out if they're more pliable when wet or dry, but I generally try to do such manipulations when it's warm. My vanda therefore has a (somewhat tangled) root "ball" rather than tons of roots everywhere. Probably more resilient to damage that way, but TBH things mostly tend to stay put once they find a home.
I often train wayward roots on mounted plants with "twisty ties" (that plastic coated thin wire in the flat strips); once they're in place and naturally stick where I want them, the twisty ties are removed. This can be quite a process with slow growing plants with un-bendy roots, like the smaller angraecoids. It's kind of like orchid bonsai.
---------- Post added at 01:35 PM ---------- Previous post was at 01:31 PM ----------
Oh, incidentally, most desktop PC expansion slot covers would work very nicely like the metal tag in those pictures. Take the side off your tower and steal a couple.