I love this talk talk advert, it inspires me to have a go at light graffiti myself. I am certainly not going to do anything as elaborate as the advert, but I may use glow sticks to try to write in the air. Using a slow shutter speed to capture the whole picture. I also want to capture light trails from cars using the same method.
Two of my attempts at capturing moving light. I like the lines of light, but I need more traffic, so I may go to a motorway bridge at night to photograph with a tripod. I do like these shots though and want to try many more.