Layering the Sawdust.
At certain steps in making a lazy susan, I need to change the blade in the foot powered table saw, so in taking the side off to get at the blade, the layers of sawdust shows the different kinds of wood that I have been cutting. It is kind of like those jars of colored sand that I have seen before. This is from the Carpenters Wheel lazy susan that I was making. Not near as bright as the Bright Oak lazy susan that I had made earlier but it still showed the layering.
Foot Powered Table Sawsaw dust