Last month, I was curious what an prism could for my images, so I gave it a whirl. Many images were not so good, but with these, I was pleasantly surprised at what magic can happen when you hold up a prism to light in front of a camera.  Reflections that look like double exposure.  I had no idea.  You basically hold the prism in front of the camera and move it around playing with what you want to focus on and where you want the light effect/reflection in your image.