Holiday Planning & Ideas Halloween Halloween Projects & Crafts Adult Halloween Costumes Detective and Hound Costume The detective and his trusty hound follow the scent to the next crime scene. Their matching plaid capes (modeled after the attire of Sherlock Holmes) are sewn from inexpensive suiting fabric with a simple pattern. Earflaps made from cloth and bias tape transform a pair of black baseball caps into a deerstalker hat. 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 September 20, 2018 Share Tweet Pin Email What You'll Need Materials Basic sewing supplies About 2 yards of suiting fabric 1/2 yard fusible webbing 1/2 yard black felt 10 yards of 1/2-inch black bias tape Disappearing-ink fabric pen 2 plain black fitted baseball caps Tailor's chalk Fabric glue Magnifying glass Child's cape template Dog's cape template Collar, bill, and ear flap templates Instructions Photocopy collar template twice; cut out. Download the child's cape template and the dog's cape template; print and cut out. Cut two 20-by-10-inch rectangles, one of suiting and one of felt; use an iron to adhere, wrong sides together, with fusible webbing. Tape pieces together to form collar shape. Trace collar shape onto fused fabric with disappearing-ink fabric pen; cut out. Sew bias tape onto collar's short sides and outside edge. Using the cape template as a guide, cut out cape. Sew bias tape to cape's bottom hem and side edges. Pin collar to cape, aligning collar's inside edge with the cape's top edge. Cut a 52-inch strip of bias tape. Sew bias tape around neck, sandwiching both collar and cape edges between; leave 18 inches of tape on each side for ties. To make a matching dog cape, using the template as a guide, cut where indicated; cut out shorter cape. Make collar, and attach to cape as described above. Photocopy earflap and bill templates; cut out. Using the template as a guide, cut two flap pieces from suiting (if your fabric is thin, fuse flap pieces to black felt for stability). Sew bias tape to outer edges of flaps. Cut two 11-inch strips of bias tape for ties; glue to flaps as shown. Trace bill template onto each hat bill with chalk; cut off bill ends. Using fabric glue, cover cut ends of bills with bias tape. Fit one hat into the other, with bills facing opposite directions. Glue together between hatbands. Glue earflaps to inside edge of hat, wrong sides out. Let dry completely. Flip up flaps and tie together. Wear over gray pants and gray sweatshirt.