Um, they're just thought to ward off evil in general.
These windows are referred to "witches windows" and are believed to ward off witches...
Hex signs.
Jim received the charm to ward off witches from the hairball that was given to him by a magic man in Chapter IV of "The Adventures of Huckleberry Finn."
Cardinals use their bright colors to ward off predators. They also can fly away from danger and into large trees.
He tried to ward off the evil spirits.
The coin that was traditionally bitten to keep witches away was a silver coin, often a type of Spanish dollar known as the "piece of eight." It was believed that biting the coin would ensure its authenticity and ward off evil spirits, including witches. This practice was part of various folk customs aimed at protection against malevolent forces.
The size of the giraffe helps it to reach the leaves of the trees within its habitat (usually, there are only leaves at the top of these trees; the rest is bare wood) and also, the size helps ward off predators.
The star on the side of a barn is a hexmark. It is meant to ward off evil magic and witches/warlocks who work with evil forces. There are those who hold a strong belief in the matters and symbols. Whether of not you believe, there are those who do.
nothing can ward off a vampire bat its impossible.
Mistletoe has been associated with various folklore and magical traditions, including beliefs about witches. In some cultures, it was thought to have protective properties against witchcraft and was used in rituals to ward off evil spirits. However, there is no definitive historical evidence that mistletoe was specifically used as a weapon against witches. Instead, it served more as a symbol of fertility and protection in various cultural practices.
Yes, they do.
This repellent did not ward off the mosquitoes very well.