Perhaps it's a powerful witch who has her own unique style of wand - making. She could have noticed Harry's special qualities from afar and decided to make a wand that would enhance those qualities. Maybe she was once a friend of Dumbledore and he recommended Harry to her.
Another possibility is that it's a magical creature. There are some magical creatures in the Harry Potter universe that are associated with magic and craftsmanship. For example, a goblin known for its metalworking skills could create the special wand. Goblins have their own understanding of magic, and the wand made by them might have some goblin - like magic properties.
It could be an old and wise wizard who has been living in seclusion for years. He might be an expert in wand lore and has a special connection to the magical core materials used in wand - making.
Well, it could be that the special wand is made specifically to counter a new and powerful dark magic threat. The wand - maker might have foreseen this threat and created the wand for Harry. The wand could have some sort of connection to Harry's destiny, like it glows when he is near something crucial to defeating the dark force. Harry then has to figure out how to use this connection to his advantage in his battles against evil.
Maybe an old, reclusive wand - maker who has been waiting for the right wizard to come along. This person could have a special intuition about wands and see something unique in Harry.
It could be Dumbledore. He always had a way of presenting Harry with things that would help him on his journey. Maybe Dumbledore had been holding onto this second wand for a special occasion or because he knew Harry would need it in the future.
It could be a mysterious stranger. Maybe someone who has been observing Harry from afar and decides that he needs a different wand for some greater purpose. This stranger might have their own motives, perhaps related to a prophecy or a hidden plan within the wizarding world.
The wand crafted by Merlin for Harry is special because it's not just a tool but a symbol of a connection between two great magical beings. Merlin, with his age - old wisdom, imparts a certain quality to the wand. It could have a unique resonance with Harry's soul. The materials used are likely to be of the rarest kind, and the way Merlin enchants it gives it an edge. It might be able to adapt to Harry's growth in magic more easily than other wands, and it could have hidden powers that are revealed as Harry faces different challenges in the fanfiction.
In some fan concepts, a dragon core wand could be linked to the dragon's emotions. If the dragon that provided the core was angry or excited during the core extraction, the wand might have bursts of extra power during times when Harry is feeling similar emotions. It could also have a special connection to other dragon - related magical creatures or elements in the wizarding world, allowing Harry to communicate or interact with them more easily.
It could be an old and reclusive wandmaker who has a special connection with Harry. Maybe this wandmaker sees potential in Harry that others don't and decides to create a custom wand for him.
There's a chance that the maker is a new character, an old hermit wizard who lives deep in the Forbidden Forest. He has been observing Harry from afar and realizes that the wands available in the regular market are not sufficient for him. So, he uses his knowledge of forgotten magics to craft a custom wand just for Harry.
Maybe it's an old wandmaker from a far - off land. This wandmaker has been crafting wands for centuries and has a unique intuition about which wands are meant for which wizards. He sees something special in Harry and presents him with a new wand.
He could collaborate with Ollivander. Ollivander is the expert in wands, and he has a vast knowledge of wand - making materials and techniques. Working together, they could combine their knowledge to create something truly extraordinary.