Dragon's Whisker

Legendary Dragon's Whisker is an item that was used to tie back Ranma's hair after he unknowingly ate a rice porridge that had stock made from the the whisker. It is a coveted item, as it can serve as a potent cure for baldness, though it has a shelf life of 4000 years. It was given to Ranma by the Dragon's Whisker Salesman to prevent his hair from growing too much.