Glow in the dark volleyball! cut glow sticks and use a seringe to put in the ball also works with glow paint to ! Omg it would be fun to do this and play with it on the pool when we do the other glow stick stuff !
Little Details Sparklers! You can generally buy them cheap from anywhere around October/November time, but I know that Asda have, from the October, a pack of 5 normal sparklers for just Make sure that all of your guests have at least one!