Recently, I dedicated an entire evening to my fingernails. I drove to Target to buy supplies, then headed home for a three-hour ordeal. I filed then soaked my grown-out dip-powder manicure in acetone.

McDonald's lovers can now take their fondness of fries and Big Macs into their own hands -- or, at the least, their nails. London-based beauty brand Nails.Inc has collaborated with the Chicago-based ...