No clue if this glitch has been stated but if you buy riften`s house, upgrade it all the way so you have the mannequins in your house, put on awesome armor on one then take it off then put it on the other mannequin, then leave your house and return to your house and the armor will be on both armor stands, so you can have duped anything, it works with dragon masks, daedric artifacts (armor) and anything else, you can also use it on guild masters clothes and the nightingale outfit.

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