Ready for cuteness overload? The kids at your wedding will look more than all right in these fun, fresh outfits.

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.