The Bat iPod was a joke I came up with, but there are people out there who really can and do make very cool replicas of comic book items. Take this guy, for instance, who put together a kick-butt set of Wolverine claws:

Maybe if I send him my Bat iPod brass knuckles he could whip me up a real-life set? I can dream.
Or maybe I should send them to the guy who made the actual set of claws used in the X-Men movie. This article shows how Canadian special effects artist James Gawley crafted the iconic weapons, and the difficulties of translating comic book physics into everyday life. Well worth a weekend read.