John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Folder Marker - Change folder color in two mouse clicks for easy at-a-glance identification.
FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.
Folder Painter - Folder Painter is an easy to use Portable Freeware program, which allows you to change the color of the icon representing a chosen folder to any color you like
Wallperizer - Wallperizer is a desktop wallpaper changer.
Dr. Folder - Customize windows folder