We found my 5 year old sneaking up to bed with a store bought egg one night. When we asked her about it she said that she wanted to hatch a baby chick. My husband grew up in the country and his family had chickens so after talking it over we decided to go ahead and let my daughter "hatch" her egg. We swapped out the store bought eggs for realistic looking fake eggs and after a few days we swapped out the fake eggs for the baby chicks while she was at school. When she got home from school she was so shocked to see her new baby chicks had hatched.