I wandered around the home improvement store, trying to come up with a solution, when I spotted something that would be perfect.
A door stop. :D
It was just the right length, and the rubber end cap would serve a dual function of keeping the hangers from sliding off and preventing me from stabbing myself or poking an eye out.
|action shot of the typical use for a door stop|
As with most of my projects, I spray painted the little guys black and added bats. :D The bats are wooden shapes from the craft store.
I spaced them out appropriately on the wall...
and they work perfectly. :D