Punji sticks were sharpened bamboo branches that were used by the Viet Cong. Sometimes the sticks were smeared with crap in order to spread infection throughout the wound. On the show, punji sticks were placed in a pit where a falling pig carcass fell on top of the sharpened sticks inflicting many wounds. It was also placed on a ball of mud to form a huge morning star. When the wire was tripped, the "mace" will fly towards the enemy and kill him. However, the Flammenwerfer 41 used by the Nazi SS was given the edge over the punji stick booby traps.
- 3 feet
- Poison: Human feces
- Sharpened bamboo
Booby Traps accounted for 10% of US casualties in the Vietnam War, however most Booby Traps were not designed to be lethal. Instead they were to seriously injure or permanently cripple soldiers, as the VC knew that the US troops would waste time and resources carrying the injured back to a hospital and waste money trying to revive them, while a dead person would simply be buried in a grave. Also the VC knew that if Americans saw returning veterans mutilated from the war, then the war would lose popularity.
The VC also used Punji Sticks combined with barbed wire to create protective fences against enemy troops. 
- Punji Sticks were also used against the Mongolian Invasions of Vietnam. They varied from normal sizes to some large enough to disable ships (these were used underwater). This helped the Vietnamese under the leadership of General Tran Hung Dao defeat the superior Mongol Army in the many attempted invasions. Tran Hung Dao would later write his military strategies down in several books, which the Viet Cong studied in the Vietnam War to fight the USA.
- The Punji Stakes are the only booby trap weapons on the show to not use any explosives.