As a witty take on a men's black-tie shirt (but not the sight gag that is the tuxedo-print tee), scan a length of lace and make two print-outs on heat-transfer paper (available at office-supply stores). Iron onto a plain button-front shirt that timeworn classic you may be slightly sick of. Or download our lace panel template.

Iron-On "Ruffle" How-To
1. Using ink-jet printer transfer paper, print out 3 sheets of the lace design.

2. Cut around the edges of the lace design. Follow transfer paper directions.

The shirt is paired with a high-waisted skirt "A wasp-waisted skirt flatters so many different body types, Katie says. "It can be very slimming, and it can give the illusion of an hourglass figure. Pale yellow is also an unexpected neutral for spring; it complements black, white, and khaki.

Credits: Men's shirt, $68, bananarepublic.com. "Bruna" pencil skirt by Eva Franco, $215, March Boutique, 914-923-2100. Earrings, $180, TenThousandThings, 212-352-1333