icns2rsrc_20070424.jpg
With a little Photoshop, the Icon Composer from the OS X install disk, and a program called Icns2Rsrc, it’s pretty easy to make custom icons for OS X.

There are a number of reasons why you might want to do this (custom app icon, etc.), but for me it seems really useful for easily distinguising between my several external drives.

How To: Create Custom Icons for your Mac -[via] Link.