Explosive Booby Traps
Explosive traps were usually set as a prelude to ambush or a warning of an approaching force.There were also traps called "souvenirs", which were explosive booby traps diguised as common items, such as flashlights or other commodities. Although not common in the Vietnam War they were utilized to a minimal extent.
The Grenade Trap
Commonly found in areas of travel, grenade traps are usually connected by two stakes on the sides of a river or stream. A grenade is tied to one side and is tied by trip wire to the other stake with the pin partially removed.
The Mud Ball Mine
A grenade is encased in clay without the safety pin inside. Stepping on it caused immediate detonation of the grenade.
The Toe Popper
Pictured on the left is the Toe Popper. A 105mm artillery shell was set in place with the tip of the bullet just protruding out of the ground. Pressure applied by a soldier would set it off, shattering the foot of the victim.
The Bouncing Betty
Here we have the Bouncing Betty, referenced commonly in the works of O'Brien. This may just well be one of the most feared and hated booby traps. They were triggered by a release of pressure on the arming mechanism. A soldier would stand on one, hearing the mechanism operate, and stand still. If he moved his foot, the mine would become airborne and explode at chest height.