Talk of The Villages Florida - The Coyote Shaker.

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What should I do if I’m approached by a coyote?
Coyotes are not large animals and rarely pose a threat to people, especially adults. Using common sense around coyotes and other carnivores is the best protection against having problems. If a coyote approaches closely, immediately use a noisemaker or shout at the coyote and wave your arms. A solid walking stick, or a golf club, is a powerful deterrent at close range. Throwing stones, a strong spray from a water hose, pepper spray, or a paintball gun also can be good deterrents. A “coyote shaker” or an air horn can be effective noisemakers. You can make a coyote shaker by placing a few washers, pebbles or pennies in an empty drink container.

FAQs: Coyote (Canis latrans)

Now this sounds cheap and effective.

Since coyotes are smart though, you may have to adopt different tactics used against them.