I was doing some test shots from the old Dickson City KMart parking lot in July, as I prepared to make an attempt at photographing a sunrise.
I choked down the f stop to cut down on the amount of light hitting the sensor. When you do that, this happens. Points of light become starbursts. Round in person. Spikey on camera.
Yes, it's a mediocre shot, but I do like the man made stars. The scary part is, I'm beginning to recognize the technique in the work of others.