Blue eyeliner can go two ways. In the worst-case scenario, you resemble Dee Snider from Twisted Sister. (No offense, Mr. Snider.) Wear blue eyeliner well, though, and you'll have a more daring and unexpected look.
Yesterday I tried out Cover Girl LiquiLine Blast ($8) in Blue Boom, a metallic royal blue dreamed up by makeup guru Pat McGrath. I applied it close to the lash line, then gently smudged it upward to create the illusion of a smoky eye. Many compliments were had. So the idea that blue eyeliner has to look totally '80s? We're not gonna take it anymore.