I have uploaded it to TeachersPayTeachers here: Art Lesson for Subs - Clowning Around
As with all my sub lessons, all you need to do is to print out this 20 page PowerPoint and leave it for the sub. The only materials they will need are paper, pencil and crayons. All the directions and visuals for your sub are included. The sub just needs to read the questions and comments on each slide, and that will direct your students.