From the lovely Susan Orchid Bansin who lives in Borneo:

This pretty and delicate bracelet is made from the tip of an unfurled banana leaf. I used to make this bracelet all the time when i was a child, adorning myself with natural ‘jewelleries’ and flowers tucked in my ponytail. I showed my daughter how to make this natural bracelet recently and she was so delighted. “Watch out for baby bats inside the unfurled banana leaf!”, I exclaimed. “What!! Baby bats?!!”, she exclaimed, too! Haha…. but it is true, bats like to sleep inside unfurled banana leaf.