My parents saved my teeth. They were really amused when 11 year old me would start collecting and saving the puppy's teeth and putting them with mine.

Not sure what the significance of saving the teeth is. Guess it's just a way for your parents to remember you from a time they really cherished you? Not sure why everyone is grossed out by it. There's way more disgusting things people do on the regular.

I don't plan on saving my kids teeth. But maybe my feelings will change when I have one.