I was playing around with my G9 during the Night Festival @ National Museum and I got this.

The effect was achieved by placing the cam in my palm and rotating it with my wrist while on a slow shutter speed. This was the "best" result that I got. Not sure if the sharpness could be improved, seeing as to the method used. If you guys have any input on improving the technique, I'd love to hear it. Using the radial blur in PS doesn't count.