The Coghlans Sportman’s Pocket Saw is a safe alternative to an actual saw. Strong enough to cut through wood, metal and plastic. There is no sharp edges so it’s safe to handle.
Two handed use: Place thumbs in rings. Extend blade so it’s tight and straight. Saw with a brisk back and forth motion.
One handed use: Cut green branch about as thick as your thumb and four inches longer than the saw. Notch each end. Insert ring over one notch, bend branch and insert opposite ring over the other notch.