Hanging from cheap magnetic utility hooks I got at
Hardware Sales.
The main criteria, cord management to prevent tripping or catching on my chair.
The pads and headband break down because of human-oil, not from hanging.
These Beyerdynamic have been hanging for three or four years. The DT990 that they replaced had been hanging for ages before them. The pads broke down because of being worn on my head, not from hanging.
The best part is, headphone manufacturers seem to realize the pads wear out from normal use and you can get replacements. The headbands are cheap, so no reason to go and spend much on a headband-saving hanger, especially when your hair is going to do the majority of the degradation. And the earpads are also cheap, and dramatically affect the sound and comfort, so I often buy a a particular favorite. But I don't worry about the hangers causing dents in my pads!