Christoph Niemann (web site) is a highly talented artist whose illustrations have appeared on magazine covers ranging from the New Yorker to Wired. He posts on a regular basis on his blog in the New York Times, where this set of cartoons based on Google maps caught my attention.
He recently published a new (board) book with snap shots of New York modeled in Lego bricks: I LEGO N.Y. (affiliate link). A sample image below.
Now here is a presentation challenge: construct your entire presentation in tiny Lego scenes, photograph them and paste them into PowerPoint. Not as crazy as it might sound.
UPDATE. One of my readers, Daniel Cabrera, used LEGO images to construct a presentation for a university project. In this case, the images were sourced from the web.