It might be hard to tell from the pictures, but I bent a coat hanger around a support under my desk. The clearance in between the support and the glass of the desk allows the hanger to slot through. Any weight put down on the hanger is sent up to the underside of the desk, with that front of the support acting as a pivot, and the back of the support, where the hanger catches on, prevents it from falling off.
As you can see, I have cables running all over the place.
With my sock modded Superlux HD662F. (side note, I don't like putting strain on the padding of the headband of headphones in general,as it leaves an imprint, but I have modded the headband so that it is as far up as it can go, maxed out by the metal bands along the top.)
Man, my desk looks cluttered, and all of these amazing designs make my make shift stand look like crap, but it is pretty darn effective. I have had two hanging comfortably on there at once.