Magical items are mostly familiar from fantasy novels and fantasy movies, but they also exist "in real life."
However, these real magic items are different from those that appear in the realm of fantasy. They are gateways to certain qualities, spirits, and deities, but not items that give a person a power they could not otherwise obtain.
Such magical objects include talismans, magic rings, magic wands, voodoo dolls, and the spiritus familiaris (a self-made spirit), as well as statues, temples, sweat lodges, haunted houses, pyramids, power places, crop circles, and homeopathic globules.
These magical objects are neither indispensable (you can achieve everything without them) nor useless (they can help with many things) - they are tools that can facilitate many things in magic.