Maricopa County Sheriff’s Posse, Desert Search Unit, from Scott Kozakiewicz (ASU Rec 340, Outdoor Survival) recommends using unlubricated condoms or balloons. The balloons designed for helium, found at party stores, seem the most heavy-duty.

Balloons can also be placed in a decorative manner around your survival campsite to create a festive atmosphere. By some coincidence they also make it easier for SAR to find you.