In infantry school we actually had classes about improvising weapons for when everybody is out of ammo, complete with tales from Vietnam. One of my favorites was wiring up piles of rough-edged, but sharp, c-rat can lids using the wires that came around c-rat cases. Swing that weapon the right way and you can cut somebody up.
Semper Fi! L0L
Cans clips, tin cups, anything metal that clangs) on a wire - poor man’s night alarm.