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, perhaps the hair tie on the wrist is part of a cultural or family tradition. A jealous rival kidnaps it out of spite. As the story unfolds, the owner discovers that the hair tie holds a secret, like a hidden map or a code. So, not only are they trying to get it back for sentimental reasons, but also to unlock this mystery. They might team up with an unlikely ally, like a street - smart kid or an old hermit, to retrieve it.
The hair tie could be a symbol of a group's identity. A group of outlaws kidnaps it to create chaos among the group it belongs to. The main character, who is very attached to the hair tie, starts to search for it. During the search, they learn more about the history of the hair tie and the importance it holds for their community. They have to use their wits and courage to outsmart the outlaws and rescue the kidnapped hair tie.
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.
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.
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.
One possible plot twist could be that the hair tie is a secret signal between the mother and her family. For example, it might be a unique color or style that only they recognize. When the kidnappers are distracted, she manages to leave the hair tie in a visible place as a sign for the rescuers.
It can be a clue. For instance, the hero in the fanfiction might notice the hair tie on the wrist of a suspect and start to suspect that person of being involved in the kidnapping. It's a simple but effective way to introduce an element of mystery and investigation into the story.
The hair tie on her wrist could be a symbol of her past normalcy. Maybe it was something she put on in a hurry before being kidnapped, like a reminder of her everyday routine. It could also potentially be used as a weapon or a tool for escape if she manages to get it off her wrist.
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.
In the fanfiction, her hair tie could be enchanted. When she's kidnapped, she discovers that she can use it to send out a distress signal only visible to those she trusts. Her bun could also hold a secret. There could be a hidden tattoo on the back of her neck that is only visible when her hair is in a bun, and this tattoo is the key to a great treasure. The kidnappers don't know this yet, but they will soon find out as the story unfolds.
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.
The plot could be that the girl is on the rollercoaster for the first time. The hair tie on her wrist was given to her by her best friend who couldn't come. As the rollercoaster moves, she feels a mix of fear and excitement. And she realizes that the hair tie gives her the courage to face her fears, just like her friend always encouraged her.