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$8 'Save-a-Deer' Whistle Can Save the Lives of Many Deer (And More Importantly, Drivers) - alt_driver
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DIY: Installing Deer Warning Whistles! - Why you should use screws instead of mounting tape. - YouTube
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Amazon.com: 8sanlione Deer Warning Whistle for Car with Extra Tapes, 4 Pack Save Deer Whistles Repellent Devices, Animal Alert for Cars Vehicles Motorcycles (Black/4PCS) : Automotive
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2Pcs Ultrasonic Animal Saving Wind Whistle Cars Motorcycle Deer Warning Repeller Black Whistles warn deer up to 1/4 mile away
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