@Jeff15 Thanks. Have you ever tried anything like that? If you haven't then I think you should. The possibilities are infinite. All you have to do is gently shake your camera. When the timing is right, hit the shutter button.
I like the image. Intentional Camera Movement, ICM. It's all about the shutter speed - very easy to control with a camera. You can also manually control shutter speed on a phone camera. Or, go in the dark and the auto modes of a camera or phone will slow the shutter speed enough for ICM