It's take a few decades, but the technology industry is finally figuring out that one size definitely does not fit all. Recently, for example, we've seen mice and keyboards that come in mix-and-match sizes, even breaking apart in some cases.
But why limit this concept to the desktop? ezGear is applying that strategy from the neck up--starting, of all places, with the ears. Its new "ezEars SX50" iPod buds come with rubber earpieces in three sizes designed to custom-fit your aural cavity.
A snugger fit is a good thing from an aesthetic standpoint as well, to help you avoid the Goofy look.