This is one of my latest images that I really love how it turned out. The kids were playing with a tower of marbles, and I stole them from them (for 2 minutes) and photographed them in the jar. The setup was simple - I had my flash on a cord underneath the bottom of the jar. I had to play around with it a bit to get it right. In the end I think I had the flash about an inch or so from the bottom with the wide diffuser on it.