These days, it takes a special CD case to merit much more than a glance from me. Truth is, I usually rip the disc, glance at the packaging and then throw it in a closet, never to be seen again (okay, never to be seen until my fiancee makes me clean it out every few weeks). But occasionally, I come across a cool package that’s worth holding onto — some of the old Radiohead deluxe book packages, those sweet little tins that Fabric mix CDs come in — and it adds a little extra incentive to purchase the disc whenever I do. And here, we have pretty much the ultimate “something extra” in CD packaging: a working theremin built into a CD case. Plug in headphones, wave your hand around and voila: magic theremin action!

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