These are interactive projects that I have conducted with groups of people, mainly students. I lay out the basic parameters and then have them manifest the image using whatever medium I have chosen for the project.  Some of these are large-scale color by numbers or paint by numbers projects.  Most are made by projecting an image and having people trace the outline of what they see, which tends to be abstract up close, using ball point pens.  Once they complete that part of the project, I then lay the image flat on a table's surface, and have them begin to color some areas in, varying the line qualities and values relative to my direction.