Ah, those are easy.
The ones dangling from each missle are, in fact, dangling from the horizontal stabilizer and are static discharge wicks for continuously discharging static during flight. The one dangling from the left main tire (tahr in Texican) is also a static discharge wick - since the main wheel touches down first (hovering left wing low), it discharges the static built up during flight on touchdown. A lot of helicopters with wheels have these - some on the tailwheel, some on the mains. The tires insulate the airframe from the ground, in theory.