The anti-defense crowd of thugs and rapist wannabes often whine about innocuous knives being weapons. They attempt to ban them for being too big, too small, opening too fast, being too military looking, or just being sharp. However, the world is full of every day objects that can be rendered into something just as potentially dangerous if not far more than your ordinary EDC folding blade. Such an item is the Millwall Brick.
The Brick hails from the disarmed serf-nation of UK. It was used as a soccer hooligan's stealth weapon. It is a mean little improvised weapon, that can be brought anywhere and made on the spot within a few minutes. Such as that, it's not really a bad idea to know how to make one if push comes to shove. The materials to make one are found in your Sunday Edition newspaper. Or rather, the Millwall Brick IS your Sunday paper!
The Millwall Brick is a carefully folded large newspaper. It is folded/rolled long wise, and then folded in half to form a handle and the rounded fold becomes the head of this bludgeon. They are often wettened down to add weight or even feature nails.
To be honest, it would be a more effective weapon than your after Kershaw or Gerber folder. It has more size and reach. It is almost like a sap.
Paper is surprisingly strong in bundles. Folks have made .22lr back stops in their homes using phone books. That paper doesn't have the density of folded either. Each time you fold paper it comes harder to fold until you cannot fold it further with a human's strength.
This simple item could easily put someone into the hospital. Used effectively it could kill someone. But it is just a newspaper. I cannot think of a single place that bans newspapers. Schools, airplanes, courthouses, bars, post offices... It is just one of the countless items that can be used in place of knives or even guns everywhere if your criminal decides to obey the rules...