Whether it’s a rabbit’s foot, four-leaf clover, or something more personal, good luck charms have existed across the world for centuries. Maybe everyone who carries one is onto something?

Some are more obscure than others — you probably knew that wishbones are considered lucky, but were you aware that acorns have been associated with good fortune since Norse mythology? Whether one is more effective than another is difficult to say, especially since such items often carry sentimental value as well. It could be as simple as a cool-looking coin you found as a child and decided to hold onto just in case or as elaborate as a family heirloom dating back generations. Or maybe you don’t have one at all, choosing to make your own luck — assuming you even believe in luck, that is.