Allen917,
My grandmother didn't have snakes that bothered her chickens, but she had one of those glass eggs and a home-carved wooden one painted white.She called them 'fool eggs'.
Their primary purpose was to train a hen that wanted to drop eggs on the ground instead of in the nest. She would place the fake egg in the nest and place the hen in the nest with it.
After 1 or 2 tries, the hens usually got the idea.
Myron
