Whether you want to change a specific icon within Windows, or replace the default application icon in ObjectDock, we have two icon galleries on WinCustomize that will help. We have some really awesome icon artists that come up with some great new designs for icons, or build off the default icon of an application and put their own personal touch on it.
This is especially true for more common applications like Photoshop or Microsoft Office, but you can find pretty much anything in the icon galleries if you take the time to look.
Here are some featured icons.