While waiting for our campfire on Saturday night at camp, I decided to pull out my camera and try some long exposure shots, to see if I could get some fun ghostly images.
Long story short: most of the pictures were crap 
But a couple turned out kinda cool. Here’s one that wasn’t just passing light, but a bit of light artistry 
(The picture looks better at the original link)
The nice thing about digital “film” is that I knew immediately if it worked or not. Great way to pass some time at camp!
That’s really cool. How did you do that?
It’s a 30 second exposure of a fairly dark section of the campsite. A person with an LED headlamp turned it on and off as he wrote the letters (backwards to him) so that they spelled the word.