quiet low torque Servos

Hi, i build a prototype of a moving eyeball. https://dl.dropbox.com/u/6634904/2013-01-10%2021.02.19.mp4 https://www.dropbox.com/s/ixerwobv1gfxymg/2013-01-11%2008.37.35.jpg Works as is aspected but the Servos are very loud, i need some servos which are quiet and as you see, they dont need much torque. Know someone some quit servos?Or can i make my servo more quiet? Or does someone know an alternativ to a servo?

P.S Sorry for my bad english ..

You might try coating the servo gears with vasoline or silicone grease. if they don't carry much load you might drop the supply voltage to them to a value near to their minimum rating.