Riddonkulous

When you let your animals out to pasture, And you need to keep an ear out for wherever they meander, You can grace them with this fabulous accessory. Any material will do, so long as it can make a loud enough clatter and can cut through insects' incessant chatter Now you can get your chores done, or even rest a spell, Alternatively, as Ferrell would say, 'Needs more'...?