We got Juliet's second Christmas tree on Sunday and she immediately went to help with the twinkle lights. She wrapped them around her neck wanting to wear them like she does her doll's clothes or our own clothing. She studied the individual lights and tapped them together. And once they were on the trees she left them alone. At this point we have only trimmed the tree with shatterproof balls and glitter snowflakes, and she has yet to really try and pull them off!