If you fancy playing with Lego blocks and you're not familiar with Jason Allemann, take a few minutes to browse his work. He's one set of hands behind JK Brickworks, a site that posts rather unique builds with the plastic bits, including gravity-powered walking animals. For his latest project, Allemann built Bricasso: a device that scans an image and then "prints" a mosaic of it using 1x1 tiles. What's more, it's constructed entirely out of Lego parts. Bricasso uses a Mindstorms EV3 color sensor to scan the source photo -- which has to be pixelated from the jump -- and saves the data needed to complete the finished piece.