Dry Ice also known as low fog is a great effect for using on the first dance. It creates an amazing cloud, which stays low on the floor and never goes above your knees, perfect for the video and photography teams as they can shoot your images with no haze compromising the quality of the picture and at the same time create visuals of you as if you were dancing on the clouds.
Its only water and dry ice based which makes it safe to use at any hotel venues.