I'm sure your way is much better. I'll just do that. Was trying to avoid asking my husband for help, so he didn't notice the sudden influx of trees.That jack chain is real inexpensive by the foot at hardware stores and home depot. Open a link and hang like I did in the second picture. The chain is just opened wider at the bottom to hold in the light keyholes... With moisture and such I myself would not use a "sticky" solution.
Grimmy