If you're still stuck in the 20th century playing music on little plastic discs, this speaker/CD case combo could be a useful way for you to make your music portable. Looking like a standard CD book, the case has removable sleeves to hold up to 16 CDs, but the real feature is the headphone jack that connects to your CD player and plays your music out a small built-in speaker. Judging by the size and price of the case it probably isn't the highest quality speaker, but if you just want some tunes while out on a picnic or something it'll do the trick. And of course there's nothing saying you can't plug an MP3 player into this instead of a Discman, if you're so inclined. Available online now for only $14. — Adam Frucci

CD case speaker, via Oh Gizmo!