Iconic Folder

Iconic Folder is a tool to customize you Mac OS X folder icon with PNG files.
Iconic Folder have two options to give you different customzied icon effect.
Drag and drop a transparent PNG image file into Iconic Folder and it will turn it into a folder icon for you.

To add your new icon to a folder just drag and drop the folder into Iconic Folder. Just two steps to generate your unique folder icon.