Chasing rainbows

Today I showed Ben how to make rainbows with one of my large CZs. There was just as thin strip of sunlight showing through the bottom of the door so we were both on our knees chasing the light. He was trying to catch the rainbows but couldn't understand why he couldn't see them when his shadow moved. I got some funny shots of him trying to catch the rainbows on his face and holding the stone up to his eye to try and see the light bulb inside and when the sun was gone he decided the batteries were flat :)
I don't know if I'll ever get all the finger prints of my CZ though.