The term 'HARRY POTTER ACCESSORY' can be summarized by the four-letter solution 'WAND'. A WAND is a magical tool used by witches and wizards in the Harry Potter universe. It is used to channel and direct magical energy, and is usually made of wood with a magical core such as dragon heartstring or phoenix feather. Each WAND is unique and has its own personality, and is often chosen by the wizard or witch it belongs to.