How To Create Custom Icons For Mac Files, Folders, & Most Applications
UPDATED
New download link: http://www.img2icnsapp.com/
Apple's website does not host applications anymore due to the introduction of the Mac App Store.
In this video, I will show you how to create your own custom icons, using images that you have selected. I will also show you how to convert them into the right format, as well as how to use your new icons for files, folders, and many applications on your mac.