Teeth- weirdly yes, I saved these until it occurred to me that only serial killers save teeth ? umbilical cord- yes until I grossed myself out by realizing I was saving a piece of dried blackened crispy skin ??(which I only did because the baby book has entire page dedicated to it!) Hair- yes! Because that first curl ❤️❤️❤️ But clippings?? I have never heard of anyone saving these ever. To each their own, i guess ??