My mom always kept me and my siblings' baby teeth in small boxes for each of us, and I kept my wisdom teeth, too, so I always thought that was normal. Glad to see it kind of is?
One seven leaf clover and one eight leaf clover that I found, but one of them was buried in a 'time capsule' in the yard years ago.
A letter that was stamped in England with a special announcement for when one of the royal babies was born, I think, forget which one, just a few years ago.
Several unusual coins and dollar bills since that is what I used to collect. And some books printed in the 1800s.
Oh, and used wallpaper from my old house, just in rolls.