Needing a place to hang necklaces that were too long for my velvet jewelry display, I made a simple DIY necklace hanger... bat-shaped, of course. ;)
I used a wood bat shape, same as the ones I used for my door pediments. I hammered in a few short nails, ensuring that the nails didn't poke out through the back.
I spray painted bat and nails black.
The bat already had a pre-drilled hole, so I simply put a screw through that to attach the hanger to the wall. Then I tapped two of the nails into the wall a little so the bat won't shift under uneven weight of the necklaces. And it was done!