It’s hard to imagine a world without digital audio players. It was just around 10 years ago that we were carrying around bulky Walkmans and CD players. Now, we stow our music collections on devices that are the size of an ice cube (MobiBlu Cube2) or a book of matches (Apple iPod Shuffle). What makes MP3 players so popular? For starters, they’re extremely portable (and some even come in a variety of fun color choices). The MP3 accessory market, too, has grown exponentially, allowing us to collect an assortment of doo-dads to personalize our players, including armband cases, FM transmitters, and speaker docks.

But that’s not all. On the other side of the spectrum, of course, lies the wacky world of MP3 players. You’re not likely to see many folks rocking out with these gadgets, but they are a world of fun to look at.