"Piercing definitely finds its way into this category," says Megan Catherall, an expert body piercer at Pricking Thumbs Piercings who has over eight years of experience in the industry.

If you're a big fan of cool piercings, you've likely tried your hand at some of the more popular ones, like the helix, conch, or tragus piercing. If you're a true aficionado, you've maybe even tried ...