From Make Blog:
One of my favorite artists, Evan Roth, is working on a project that will be released soon - the pictures say it all, it's a "carry on" communication system. These metal places contain messages which will appear when they are X-Rayed. The project isn't quite done yet, Evan needs access to an X-Ray machine to take some photos and document. If you have access to an X-Ray machine he's willing to give you a set of the plates for helping out (email fi5e [at] ni9e.com].Metal plates send messages to airport x-ray screeners
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.