One idea could be that the hair tie is a secret signal among a group of friends. When the main character has a hair tie on their wrist, it means they are in trouble. Their friends notice it when they are kidnapped and start a rescue mission. They follow the clues left by the kidnapper which are somehow related to the hair tie.
Maybe the hair tie was left by a previous victim at the scene of the kidnapping. The protagonist, who is now kidnapped, finds the hair tie and realizes there might be a way to escape. The kidnapper has a strange obsession with hair ties and the protagonist uses this knowledge to outwit them. For example, they create a distraction using the hair tie to escape from the locked room.
The fact that her hair is in a bun might also play a role. It could be a cultural or traditional style in the fictional world she belongs to. When she's kidnapped, her captors might be disrespectful of this style, which angers her and gives her the motivation to resist. The bun could also be used practically during her captivity. For example, she might hide small objects in it to help her escape, like a lock pick or a small note.
The story could start with the girl going about her normal day, the hair tie casually on her wrist. Then suddenly, she's grabbed and taken away. The hair tie might play a role in her escape plan. For example, she could use it to leave a trail or as a tool to pick a lock if it's long enough and strong enough.
Another idea is that the hair tie on the wrist is a symbol of a secret relationship. In the Twilight world, where relationships are often complex and secretive, a character could wear the hair tie as a sign of their connection to another. It could be a way for two characters to communicate their feelings without words, like a secret code.
A disgruntled ex - friend could be the kidnapper. Maybe there was a falling - out between the two characters, and the ex - friend wants to get back at the owner of the hair tie. They think that by taking this precious item, they can cause emotional pain.
One possible plot could be that the hair tie has some sort of magical or sentimental value. Maybe it was given to the main character by a loved one. A villain kidnaps it to try and manipulate the character into doing something. The character then has to embark on a quest to get it back, facing various obstacles along the way.
Well, it could be a symbol of a past encounter. Maybe the person who was kidnapped was wearing the ponytail and the kidnapper took the hair tie as a sort of trophy or reminder. It might also be used by the protagonist later on to identify the kidnapper, like if they notice the hair tie on the kidnapper's wrist during a chase or confrontation.
Perhaps the black hair tie is a reminder of a past love. Felicity is constantly haunted by the memories associated with it. She meets someone new in the fanfiction, and the presence of the hair tie creates a conflict as she tries to move on from her past while still holding onto this memento.
One idea could be that the hair tie is a memento from a special moment. For example, in a fanfic, it could be the hair tie that Rory gave to Jess when they were studying together one day, and Jess keeps it on his wrist as a reminder of their connection. It could also be used as a symbol of a secret pact between two characters. Maybe Lane and Rory make a pact to always be there for each other and use the hair tie as a physical reminder, and in the fanfiction, it becomes a crucial part of their friendship story.
Well, first, establish the character who has the hair tie on their wrist. This character could be a very popular or important person in the fanfiction world. The kidnapper might target them because of their status. During the kidnapping, the hair tie could get damaged, which adds to the tension. The character then has to find a way to repair it or use it in its damaged state to escape. For instance, they could use a broken part of the hair tie to cut through ropes if it's made of a strong material. The hair tie can also be a connection to other characters. For example, another character might see the hair tie on the news when the kidnapping is reported and recognize it as belonging to the kidnapped character, which then sets off a chain of events to rescue them.
Maybe she's a competitive swimmer. The hair tie on her wrist is from her best friend who couldn't make it to the big championship. Every time she feels tired during the race, she looks at the hair tie and remembers her friend's support, which gives her the extra boost to keep going and win the race. In the fanfiction, you could explore her friendship and her journey in the world of competitive swimming.