Looking for old style iPod sync cable

I recently lent my older style (longer 30-pin adapter with spring release buttons on the sides) USB cable to someone and now it is nowhere to be found. :-(

Does anyone know where I can find a replacement for this cable? To be clear, I am looking for a new (or barely used) OEM cable, manufactured by Apple, with the spring release on the sides.

I have looked everywhere and all I can find is the new style, half-height connector, without the spring clips.

Any help would be appreciated. Thank you!