Luminous toys are toys that emit light or glow in the dark. They are usually designed for children and can come in various forms, such as wands, balls, figures, or sticks. Luminous toys typically use a battery-powered light source, such as LEDs, or a chemical reaction to create the glow effect. Some examples of luminous toys include glow sticks, light-up yo-yos, LED light-up balls, and flashing wands. They can be used for play in low light conditions or as decorative items for parties or events. However, it's important to use them with caution and follow the manufacturer's instructions, especially when it comes to small children, to avoid any potential hazards.