Glow in the Dark Mini DucksThese small ducks glow in the dark making them perfect for night time carnival games at Halloween. Simply expose these ducks to light and they will glow in the dark for hours. These ducks float but they do not float upright. Need an idea for an economical party favor or game? Rubber ducks make a great addition to any party event. Use the ducks as party favors or float the ducks as part of a game.