If you ever dreamed about a situation where you could just grab a physical representation of the music you want to listen to, say the CD cover, and by placing it on the table have the music automatically played through your stereo, you might want to check out this video. In it you’ll see how Nic used Arduino plus Parallax RFID reader/tags to make his Squeezebox network music player a bit more physically intuitive/interactive. Looks like a fun weekend project. Source code and more detail available on Nic’s blog.