Docker 1.6.6 for Mac
Docker is a mac freeware to spice up your dock and access its settings with a simple interface to can customize the style and color of your Dock or Desktop.
Docker allows Mac OS X Leopard users to toggle between a 2D or 3D dock, or even changing the color of and style of individual Dock parts. You can also select your own images, or a use a variety of styles available for download.