As many of you know, Sally (voiced by Catherine O'Hara) is Jack Skellington's love interest in Nightmare Before Christmas (1993). She is a woman patched together, a rag doll (not just her clothes, but also her blue body), a creation (and unwilling companion) of Doctor Finkelstein, resident mad scientist. She does not want to be with Doctor Finkelstein and tends to poison him with deadly nightshade (slipping it into his food, which puts him to sleep) throughout the film to give her time to escape her prison and observe Jack. Being a rag doll also has an advantage, when she loses an arm or leg, she can quickly stitch herself back together.
In the film, Sally has a premonition that Jack's Christmas will not end well. She tries to convince him to call off his plans, but to no avail. However, that is not the end to the story. As we know, sometimes the hero takes a little longer to come around.
Sally is kind, beautiful, shy, resourceful, and curious about the world outside of Dr. Finkelstein's (same adventurous spirit as Jack - but the ability to see right from wrong). She also is not afraid of rescuing Santa from Oogie Boogie all by herself, when she she is also very brave (Santa declares "She's the only one who makes any sense around this insane asylum!"). We see how she can admire and adore Jack, but still challenge his good intentions.
Last year I was able to purchase a Sally dress from Hot Topic. Many shops / brands can provide great dresses, tops, leggings, etc for your casual cosplay needs (WeLoveFine, HerUniverse, ThinkGeek, Gold Bubble to name a few). This year, I no longer live in sunny, warm southern California. Instead, I'm experiencing a late October fall in the Midwest (which I would not have any other way) - which meant my Sally dress needed a little something more. I layered the dress over a black long sleeve shirt and teal blue tights. Then I accessorized with my favorite arm warmers (purchased on Etsy years ago from LittleGallery), a blue scarf, black boots, and light blue eyeliner. Now excuse me while I sing, "I sense there's something in the wind."