I love to experiment with the camera to see what . One technique called ICM (Intentional Camera Movement) involves intentionally moving the camera while taking a longer than normal exposure. The environment you are in, colours around you, light and the photo you want to create all determine the amount and direction of the camera movement, as well as the length of exposure. With a lot of patience and some trial and error, some beautiful scenes can be created.
Here is one of my favourites. Check the site for more photos using this technique.