I don't have any pictures but what I do is mark my eggs first with an X on one side and an O on the other. I also put an arrow under the X or O so I don't forget which way I'm supposed to turn them. Then you turn them, half turns from the X to the O, then next time turn them back the way they started. So you never make a complete circle.
I was trying to post a picture for you but my computer is not cooperating. However I do have a photo on my BYC page that shows you how I mark them. If you click on the picture it will show you a larger photo.
