Sure you can find all different colours
here.
Oh and for the people wanting the clear dock with reflections like mine heres what you need to do, go to your OS drive and then go to System > Library > CoreServices > Dock (Right click and show package contents). Delete the following files, frontline.png, scurve-l.png, scurve-m.png, scurve-sm.png, scurve-xl.png, seperator.png. Make sure you back up those files first though incase you ever need to restore the dock to its original state.