Taylor Swift's unique and beautiful Eras Tour outfits pay tribute to each of her albums, and all of them will make for great costumes. Her "Reputation"-era outfit might be the most immediately recognisable of the bunch, though. For this one, you'll want to get a one-legged, one-armed tight black jumpsuit (or cut off one the leg and arm of an ordinary jumpsuit if you feel like getting a bit crafty), and then buy or make some bedazzled red snakes and layer them across your body.