https://blog.knife-depot.com/top-10-knives-disguised-as-everyday-objects/
https://www.hulldailymail.co.uk/news/hull-east-yorkshire-news/guns-disguised-everyday-objects-hull-3102605
https://www.popularmechanics.com/military/weapons/a24484439/submachine-gun-briefcase/
https://www.karatemart.com/hidden-weapons?P=all
https://observer.com/2016/04/the-tsa-instagrams-cleverly-concealed-weapons-it-confiscates-here-are-11-of-the-craziest/
https://en.wikipedia.org/wiki/Heckler_%26_Koch