These are fun to create and leave plenty of room for error. Gauze will look the most realistic but sheets work just as well. Wash and dry the pieces once or twice using plenty of bleach. Afterward, soak the pieces in watered down tea to stain slightly. Allow the strips to dry, then rub a little dirt on them for the finishing touch.
Children can wear white clothing underneath their bandages.
Give everything a dried out, dead look by applying plenty of baby powder to the sheets. Wrap each body part separately, secure the ends with white or clear medical tape. To give it a rotting effect, smudge dark make-up around the eyes, mouth, along fingers, under fingernails, and so on. Using make up and fake blood, a scars and a few gash marks. If weather is on the cold side, have child wear black or green tights under outfit.