Lisa Tarala onto Very Cool, I learned about these trees from reading "On Folly Beach." One of the main characters made them for a living. I saw my first and only one in front of a folk art museum in Enterprise, AL. Originally slaves from the Congo brought them to the US because the noises the bottles made when the wind blew were thought to keep the evil spirits away.
Love to put differant color bottles on here, Clear ones you can empty a bottle of fingernail polish on the inside, twist bottle as it runs down. i use irredescent, or sparkly colors that catch the sun.