Gadget-loving blog ShinyShiny brought to my attention a little RFID Amusement.
The French-language cultural magazine Amusement has published a print issue with an RFID chip attached, which, when read by a suitable RFID-reader, provides access to additional content.
There's a very basic video overview of Amusement's RFID chip in use over at Shiny's site (focusing almost as much on Nabaztags as on Amusement) or you can visit the magazine's own site for more information (although this is probably best for the French-speakers among you).