Hand over the digital camera & let them have at it. As a child, I used to love taking pictures, my parents insisted that I had a good eye. I had no idea what that meant, but it made me feel so good and proud inside. I also remember how frusrtating it was to only be allowed to take a few pictures, and then to have to WAIT for my masterpieces to come back from printing.
B really likes it when we let him take pictures (I’ll admit that we’re a little squeemish about it these days since we bought the-camera-that-we-really-couldn’t-afford), we are always captivated to see our world from his perspective.