Michelle Tagliamonte, 58, spotted faint black lines on the nail of her her right thumb while getting a manicure in September last year. But when the marks hadn't grown out by her next nail session ...

“The first time I noticed it [the mark] was in September,” she recalled ... “The discoloration at the base of my thumbnail ... this black line in my nail was coming from inside the ...

Try different designs or stamp a combination of black and white marks to make a high-contrast, bold design. You could also find or make your smiley face stamp. This innovative nail art technique ...