For those that are worried about light pollution at the RTR, well, life is gonna suck for you. There will be campfires, lanterns, flashlights, and porch lights every where. There are people like me that forget to shut off their porch light and as a friend says, Jim remembers to shut off his porch light when he goes to bed. The only problem is Jim goes to bed at 3 am.
There was a group across the wash of me that made some rather rude comments about my light at 2 AM. Funny thing is they were not concerned for those around them with their campfire, lantern and music as they sat there night after night talking, laughing and cackling away. I probably would have turned off the light and gone to bed earlier had they not kept me up.
Know that the RTR is going to be thousands of people cheek to cheek with each other. Please temper your expectations of others with respect and tolerance.
To the OP. Go to the Dollar tree and pick up some humming bird feeder hangers. They are metal and about 18 inches long. Three per side should do nicely.