[LonePalm]

IIRC it was from leather inserted into their uniform collars to protect the next from blade strikes.

WWG1WGA

Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)

[Richard Kimball]

From muslim pirates.

[little jeremiah]

From Moslems when the Marines were fighting them.