Silly string is used in the US and British Armies!
In their Iraq missions, troops from these countries developed a way to search for traps. They sprayed open doorways and halls with silly string to detect and maneuver around tripwires, preventing explosions!
How does it do this? silly string is sticky enough to latch itself onto wires without weighing too much and setting off traps. At the peak of the War in Iraq, people held silly string drives to send the canned goop to troops overseas! To read more on the properties of silly string and other uses, click the Source below!