Here is a classic mummy costume that actually looks and feels authentic, no plastic required. 1-2 hours and less than $10! First gather up all of your materials and begin boiling water for the tea bags.
I would recommend at least 10 teabags to be used for all the gauze to be stained. Once the water is boiled place in your tea bags and let sit for 10 minutes. During this time you can begin to tear your shirt and leggings, don't get carried away--just enough that the slashes show some skin when fully dressed.
To make the costume more effective you could also use sponged on black or gray makeup onto the skin that is showing to give the appearance of "rotting flesh". Let cool for 20 minutes or so until you can safely handle the tea bags and water. Squeeze excess tea from the bags but keep them in the water.
Place the gauze into the water and leave for 10-15 minutes, ... more.
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