I have three screw into the plywood walls in my garage specifically for this task.
The center one is slightly lower than the outer two, and they protrude about 2".
Borax the tail, put the center of the meat on the middle screw, and tuck the bottom feather of each side up over the out screws.
............Your method is a bit simpler and should let the fan breath better. I'll be sure to grab one of my wife's hardwood "slacks" hanger for the next one. LOL
I kind of laughed to myself when I added three fans to the stack this year.......what in the world am I saving them all for????
I guess when a buddy wants a fan to use I'll have one to give away.