Not to say that any of this is funny in any way, but I've always found it fascinating how mankind can find humor in even the worst facts of life. It might not always be pretty, but in this case there is a beautiful and IMHO hilarious movie about the subject of facial mutilation in the first world war period: Au Revoir Là Haut, translated as See You Up There in English.

https://m.imdb.com/title/tt5258850/