around here ice fisherman use short lenghts of broom stick with a sharpened nail on the end and a eyelet on top that a cord is tied around..the cord go's around the back of you neck--outside your jacket and the stick bits with corks on the nail go's into the pockets--then the same thing..drive the gizmos into the ice and pull your self out...these are common and a plastic version can be bought at sports shops--