I learned about this odd little invention from one of my favorite blogs in the world, Near Near Future:
James Patten, a Ph.D. candidate in the Tangible Media Group at MIT's Media Lab, has invented the Corporate Fallout Detector. The device scans barcodes of goods, and makes a clicking noise based on the environmental or ethical record (selectable via the "sensitivity" switch) of the manufacturer. The more "click click" you hear, the worse are the ethics of the company.
The system works by correlating several online bardcode databases with a pollution database and a corporate ethics database.
Apparently, Patten invented this "to encourage awareness and curiosity, rather than to serve as an educated consumer’s sole source of information." But I don't doubt he could make a fortune by mass-producing them. After all, the unhampered flow of information is a central pillar of the free market!