Is there a Christian basis for using garlic, crosses, and holy water against evil?

In popular culture, it is believed that holy objects, such as garlic, crosses, and holy water, can protect against evil, like vampires. Also, Caleb's response to this question inspired me to ask whether or not using those things (garlic, crosses, and holy water) have any legitimate basis in Christian practice, or whether or not they are merely idols and only part of the fictional world.