I was looking for a bracket that could hold my headphones off to the side of my desk. I found several on here, but the few I tried were either bulky and wasted filament, or weren't strong - having a lot of flex in the part sliding over the desk/shelf. Decided to try a design that would be strong, yet small, and efficient on filament use.

This supports a thickness of up to 25MM, and handles any headphone with headband up to 50MM. It definitely handles weight, as my heavy pair of headphones (HifiMan He-500) weigh over 1 pound!