Light Painting
This photo was taken using a strip of gold LED lights as well as using a color changing phone app. This picture had an exposure time of 10 seconds and had an ISO speed of 400. To get this picture, one person held the strip of LED lights and twirled them around in a circle to create the gold rings you see behind the colors. To create that squiggle of colors in the center, someone held the phone with the color changing app, and moved it side to side as they moved the phone higher.