Wow, as if the royals weren't weird enough. Here is a brooch made in 1847 from the baby tooth of Princess Victoria, the 7-yo daughter of Queen Victoria and Prince Albert. The princess's dad pulled the tooth during a trip to Scotland, so they made it into a gold & enamel thistle. As one apparently does. Or did.
The full story of the brooch, which was only made public in the last few years, is at Two Nerdy History Girls. [twonerdyhistorygirls.blogspot.com thx dt reader tina]