Now this one was just for fun. I love taking pictures. Two of my very good friends came over one night last summer just so I could take some. They're so nice. This is a fun technique that you can do with photography that I first learned about in high school, and have experimented with here and there. It's often called "painting with light." In order to do them, usually you need to use a slow shutter speed, one that will stay open long enough while you move your lights. Depending on the amount of light and your F-stop, the time will vary. At night with little light, the exposure time will be longer but it can give you more to work with. I used a tripod and a remote control to avoid camera shake. With this one, the time was 4 seconds, just enough for my friend and I to swirl the circle of Christmas lights at the top and then lower them to get the streak effect. I like all the crazy lines the lights created.