Write A - R - T on the board - then erase one letter with each
warning. My suggestion is to make your own "After Ruscha" sign...
teach a bit about the Word as Art. (art with text).
FYI - this is one instance to my point made before: "Getting
permission to publish is next to impossible to get". I wrote several
emails trying to get permission to use this ART image from Ed Ruscha -
no luck. I used it anyways since I did not get responses on who to
contact - hence, I added the copyright note - no complaints yet. I
imagine Ruscha would like his work supporting Art Education.