From the show at the 142 Throckmorton Theater in Mill Valley (CA) on August 7 2012. Mort Sahl didn’t do any time, but Robin Williams headlined! 
What is (and isn't) funny about economics
The Cartoon Introduction to Economics, Volume 1: Microeconomics
Excerpts, reviews, corrections, information for teachers (including page notes and PPTs), and foreign translations.
The Cartoon Introduction to Economics, Volume 2: Macroeconomics
Excerpts, reviews, corrections, information for teachers (including page notes and PPTs), and foreign translations.
I put a pointer to this picture in my Google+ stream: https://plus.google.com/u/0/114865618166480775623/posts/ZRY3St6VpwE