One of the easiest ways to refresh an old blazer is to change out the buttons. Today, we're taking a cue from Louis Vuitton's retro Fall '12 runway and giving a mustard-yellow blazer a little vintage flair, just by adding diamond and pearl buttons. In just a few simple steps you'll have a unique blazer all your own! On Allison McNamara: H&M blazer, StyleMint top.