To make a traditional Polynesian lei, you will need fresh flowers or leaves, a needle and thread, and a pair of scissors. Start by stringing the flowers or leaves onto the thread, using the needle to poke holes through the center of each flower or leaf. Once all of the flowers or leaves are strung together, tie the ends of the thread together to form a circular lei. You can then wear the lei around your neck or use it to decorate your surroundings.