Avatar bulletin board. It took about 120 hours to make this one. The background is painted and the characters are made of paper cutouts outlined and shaded with Sharpe and/or colored pencils. The text on the side lists examples from different episodes where the characters' decisions impacted others.
Full List from Book 3's Avatar Extras was an event hosted by Nicktoons in which episodes of Avatar: The Last Airbender were shown along with a series of "pop-up extras"; text bubbles giving facts and humorous comments.
22. Book 2, Episode 17: “Lake Laogai” | In this episode, Team Avatar confronts the Dai Li and attempts to rescue Appa. It’s interesting as they find a prison/rehab/reeducation place UNDERNEATH A LAKE. How cool/creepy is that? It features hypnotism, conspiracies, and (spoiler) Jet’s death.