@redditsuckz posted this link http://archive.is/sr0LY about British Royal cannibalism in this post about the Queen: https://voat.co/v/pizzagate/1507687 and reading it, I saw that people used to use handkerchiefs to soak up the blood of the royals who were killed.

A painting showing the 1649 execution of Charles I showed people mopping up the king's blood with handkerchiefs.

Might that be the origin of the handkerchief thing in the Podesta emails?

Here's another article tying blood soaked handkerchiefs to eye mutations!

http://www.nbcnews.com/id/39831835/ns/technology_and_science-science/t/blood-king-louis-xvi-may-be-hidden-inside-gourd/

Lalueza-Fox recalled that the king was known for his blue eyes, featured prominently in paintings. He then got the idea of looking for the blue eyes mutation within the dried blood's DNA. The scientists found this mutation, at a gene called HERC2.