Children's Wedding Attire

Happy and they know it: When the duds are this delightful, kids will be thrilled to wear them—no bribery required. These rug rats go retro.

Navy pinstripe blazer, $242, pants, $152, and print shirt, $119, Paul Smith Junior. Slip-on sneakers, American Eagle by Payless. White-and-navy velvet A-line dress, $120, Isabel Garreton. Hair clip, ban.do. Bracelet, A Sign of the Times, Designs by LQ. Tights, Greendog. Shoes, Nina Kids.

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