No one enjoys a root canal. I tried to keep perfectly still and thought about the tools that my endodontist was using. The colorful array of drills and whatnot were organized in a specially made block of foam. What a good example of efficient industrial design, coded by both color and number, easy to select. I visualized the forest of shiny metal rods, and the rows of circles, then moved them around in my mind, laying out collages and a quilt. The colors and shapes distracted me from the sounds of drilling. She was puzzled when I asked to take a photo, but seemed pleased that I had noticed her special tools.