Holiday Planning & Ideas Halloween Halloween Projects & Crafts Halloween Costumes for Kids Gladiator Costume No sewing necessary! Build this costume with museum board and prong fasteners, a piece of window blind, and — for the helmet's crest — a section of flower fan. 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 June 5, 2019 Share Tweet Pin Email What You'll Need Materials Gladiator Suit of Armor template Gladiator Helmet template Gladiator Kneepads template 2 sheets 2-ply gray museum board (Strathmore 2-ply museum boards, 32" by 40", in Gray, $7.50 each, dickblick.com, dickblick.com) Hole punch Brass fasteners (Brass fasteners, 1/2", $6.25 for 100, staples.com) 4 pieces gray elastic, each 1 inch wide, cut to fit snugly against back of knee Paper shade, 36 by 72 inches (Redi Shade paper blind, in Gray, $5, homedepot.com) Double-sided tape Honeycomb paper fan, 6 inches (Fan, 6", $2 for 5, partycity.com) Instructions Download and print costume templates onto card stock. Tile as needed and cut out. Trace onto museum board and cut out. Punch holes as indicated on template. Using brass fasteners, assemble armor, knee pads, and helmet (follow instructions on templates). Add elastic to backs of knee pads, securing with fasteners. Working with closed shade, cut a 9-inch width. Unfold that piece and cut to a 13-inch length. With double-sided tape, adhere to front bottom edge of armor. Open paper fan halfway, creating a half-circle shape. With double- sided tape, adhere to top of helmet.