My Friend Bruce sent me this photo of his friend's Vise-Grip pliers with an eye bolt substituted for the standard knurled adjusting knob. I can think of several reasons why this is clever. At its simplest it makes it easier to adjust the pliers while wearing gloves. However, with the pliers clamped to something you could use the eye to hang something such as a work light or lantern. It would work as a temporary (emergency only!) tie-down point. You could even tie a length of paracord to the eye and use the pliers as a weight to toss over a branch to rig a bear-proof food hanger.