I teach from the Middle School book, English 1, that has different cartoon drawings in the green/yellow rectangles. My personal favorite is the man with the mustache and shifty eyes on the telephone. Anyways, these are PPTS are for lesson 10, but they can work for anyone who is teaching Can/Must/Will. As an activity I had my students play Pictionary for Will/Won't PPT. My first year classes are really active/noisy so they have fun playing pictionary.