for all you guys in the Commonwealth ive made a custom Mail icon using the Queen Elizabeth II Airmail stamp. hope you like it! Directions: download the app.icns.zip and unzip it. then place app.icns in /Applications/Mail/Contents/Resources (right click Mail and choose "Show Package Contents"). icon file is 512x512. you can make your own Mail stamp using this Photoshop template if you wish. author requests a deviantART comment if you use it.