CD med indbygget instrument i coveret

[Raskolnikov]

Dette må da siges at være et godt forsøg på at få folk til at købe cd'er.
Coveret er lavet som en printplade og har inbygget en "thermin".

"San Francisco electro artist Moldover, like Beck
before him, figured out a way to make physical music purchases superior
to digital: Embrace the physical. In Moldover's case, that meant
cramming an actual working theremin into the CD case.
Moldover really went all-out with this one. The CD case theremin
features a headphone jack as well as a speaker, and the wiring on the
theremin itself spells out the artist name, track names, and "album
art," such as it is. He even includes a tiny pocket-sized version of
the theremin so you're never without that odd organic screechy sound.
The album costs $50, which actually seems pretty cheap considering it's
packaged inside a musical instrument. "

http://gizmodo.com/5348516/cd-case-features-built+in-theremin-and-artistic-circuitry-match-that-bittorrent