A friend of mine (and the best improv teacher working today,) David Razowsky, posted this picture on Facebook:
Nice! It started me on a quest across the internet to find the source of the image. After hours of searching, I couldn’t find the original. But I collected a few other nifty images in my travels, and here they are. The internet being what it is, I have no idea what the source might be for any of these. If you do, let me know and I’ll add attribution and a link.
(Click the first image, then each image thereafter, to move through the gallery…)