The web is currently buzzing about blush eggs, a quite recent fad that's gone viral. Avoid worry, these haven't some strange genetic mutation ; instead, they're a smart trick using food pigment. https://docs.google.com/spreadsheets/d/1qL-aIM5KxaBFeWx9uqNsFK4KthW88k7ORDu_7a02O8s/edit?usp=sharing