You can make a good moose call from a large coffee can with one end removed. Use a nail to pierce a small hole in the center of the bottom lid, and insert a 30-inch rawhide or cotton bootlace. Tie a knot on the inner side of the can, then dampen the entire lace with water. Pull it through the nail hole until the knot is snug at the bottom.
To call, hold the bottom of the can in your left hand. With your right hand, grip the lace firmly between your forefinger and thumbnail. With the lace pulled taut, scrape your thumbnail down the lace in short, abrupt strokes to make bull moose grunt sounds; use longer strokes to emulate a lovesick cow moose. –JEROME B. ROBINSON