Is there any interesting 'Metal Arm' in Harry Potter fanfic?

Yes, there might be. The Harry Potter fandom is vast and diverse, and fans often come up with creative and unique concepts like this for their fanfictions. There could be a writer who decided to give Harry Potter a metal arm in their story for various reasons, perhaps as a result of a battle injury or some magical - mechanical experiment gone wrong.

It could be a symbol of strength. Maybe the character with the metal arm has overcome a great danger and the arm is a reminder of their survival and new - found power.

One possible story could be that Harry got his metal arm as a result of a powerful magical experiment gone wrong. It could give him unique abilities, like being able to detect certain magical auras through the metal. Maybe it was created by a brilliant but eccentric wizard who was trying to combine magic and Muggle technology.

In some fanfictions, the metal arm could be a gift from a powerful magical being. It might be enchanted with ancient spells that help Harry in his battles against Voldemort. Maybe it can transform into different magical tools, like a shield or a sword when he is in danger. This would add a whole new dimension to his character and the story.

In some fanfictions, it could be a gift from a parallel magical dimension. There could be a race in this other dimension that is very advanced in combining magic and metalwork, and they see Harry as a hero worthy of such a gift. The metal arm could then hold the secrets and powers of that dimension, which Harry has to figure out how to use to save the wizarding world.

One possible plot could be that Harry gets his metal arm during a battle with Death Eaters. The arm could be magically enhanced, with runes inscribed on it that give him new abilities like being able to sense dark magic from a distance. He then has to learn to control these new powers while also dealing with the prejudice from some in the wizarding world who see his metal arm as something 'unnatural' in a magical setting.

Fanfic often explores the idea of Bucky's metal arm sensitivity in relation to his overall state of mind. If he's in a stressed or emotional state, the arm might become more sensitive, almost like it's reacting to his internal turmoil. Writers may use this to show his vulnerability. For instance, when he's having flashbacks of his past traumas, the metal arm could tingle or ache, emphasizing the connection between his mental and physical state.

One great 'Bucky Barnes Metal Arm Fanfic' is 'The Arm and the Man' on Archive of Our Own. It delves deep into Bucky's relationship with his metal arm, how he copes with it both physically and mentally. Another is 'Metal and Memory' which shows his journey of accepting the arm as part of himself.

Well, it could be that he got it as a gift from some super - advanced ninja technology group in the fanfiction world. Maybe they saw his need for an extra weapon or tool during battles and decided to equip him with a metal arm.

One special ability could be enhanced strength. The metal arm might be able to deliver much more powerful punches than his normal arm, allowing him to break through tough defenses more easily.