Holiday Planning & Ideas Halloween Halloween Projects & Crafts Halloween Costumes for Kids Harlequin Halloween Costume Harlequin -- a centuries-old character from improvisational European theater -- is known for clownish behavior, acrobatics, and brightly colored clothes. Does that sound like anyone you know? This modern take makes a fun costume for spirited kids. An ordinary white button-down shirt, decorated with iron-on diamond shapes cut from colored satin, is the foundation of the outfit. By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on July 12, 2019 Share Tweet Pin Email Photo: GLEN GLASSER Wear white tights and dance shorts under this costume. White gloves are optional. Use the template as a guide for applying the white face paint. What You'll Need Materials Iron-on adhesive such as Heat 'n Bond Polyester satin in assorted colors Harlequin templates White button-down shirt Iron White cotton fabric Basic sewing supplies White ribbon, 1/2-inch width, 2 yards Satin ribbon in various colors Ballet slippers White duct tape Instructions For the shirt, make large and small diamonds: Following package instructions, fuse adhesive to wrong side of satin. Use diamond templates to trace shapes; cut out. Arrange diamonds to find a pattern you like on shirt. Iron in place. For the bustle, hem edges of a 12-by-88-inch rectangle of white cotton fabric, sewing a 5/8-inch channel along one long side. Decorate with satin diamonds as described above. Use safety pin to thread ribbon through channel. Gather fabric together. Stitch a 12-inch piece of ribbon to each side of shirt. Tie ribbons on bustle to ribbons on shirt. For ballet slippers, cut four 30-inch lengths of satin ribbon (we used different colors). Use white duct tape to secure the ends into the insides of ballet slippers.