Once we figured out our name, we were ready to put it on a business card. But we needed an image, and I immediately thought of the Shadow Kaleidoscope.
There is an exhibit at the Exploratorium that Frank Oppenheimer made, and it is lovely. It's called the Shadow Kaleidoscope, and it is a super simple way to create beautiful symmetries out of shadows.
To make a Shadow Kaleidoscope, you just need a bright point source light pointing down at two hinged mirrors, and your hands. When you move your hands above the mirrors, the shadows are reflected in the mirrors below, and they make beautiful kaleidoscopic images.
Using your hands is lovely, but it is also fun use familiar tools and materials to make shadows. Some of my favorite things to play with are string, plastic bags, colored glass and lenses. The beauty of a kaleidoscope is it turns a mess into symmetry. To make a beautiful mess, it helps to have a clear piece of glass above your mirrors, where you can arrange your shadow-making objects. You can also paint on the glass with ink and water to create some really beautiful effects.
To create the images for our new business cards, I put together a shadow kaleidoscope rig with stuff I had around the house. I'm especially proud of the fancy camera rig, I made it with a selfie-stick and a jar of beans.