A curious child might be the main character. They find the broken lamp in their grandparents' house and start to imagine all sorts of stories about it. They might try to fix it with their limited tools and knowledge, getting into all sorts of cute and innocent mishaps along the way.
Perhaps in the 'broken lamp fanfic', the broken lamp is a family heirloom. The main character is heartbroken when it breaks and goes on a journey to find someone who can repair it. Along the way, they meet different people who have their own stories related to lamps or broken things in general. The story could also touch on themes of nostalgia and the importance of family traditions as the character is so determined to fix this broken lamp that holds so much sentimental value.
It could be a clumsy cat. Cats are known for knocking things over, and during the Christmas chaos with all the new decorations and people around, it might accidentally jump onto a table and break the lamp.
A gunsmith would be a likely main character. He's the one who would be most interested in a broken gun, trying to fix it and uncover its secrets.
It could be an old enemy of the village who has been waiting for the seal to break. Maybe someone who was imprisoned by the same seal long ago and now wants revenge on the village for sealing them away.
It could be Rachel Berry. She is often seen as a diva in Glee. She might face a situation where she fails at something she thought she was great at, like getting rejected from a big audition in New York. This could make her feel broken and start doubting her talent.
A new character could be the main character. A young orphan who discovers they have some sort of magical ability in the 'Once Upon a Time' realm. Their soul is broken from the loneliness and abandonment. But they use their new - found powers to reach out to the lonely and broken - hearted characters in the story, mending their hearts and in turn, healing their own soul.
Maybe a battle - hardened veteran who once used the laser musket in combat. Now that it's broken, they are determined to fix it as it holds sentimental value. It was their trusty weapon in many battles, and they can't bear to see it in a broken state.
The plot could be about a family's Christmas that nearly goes wrong because of a broken lamp. Maybe it was a special heirloom lamp that was supposed to be part of the Christmas decor. Its breakage could cause family drama, like arguments between family members over who was responsible. But in the end, they might realize that the spirit of Christmas is not about the lamp but about being together, and they find a creative way to fix it or replace it with something even more meaningful.
It could be that the 'lamp man' is a mysterious figure. Maybe he's not really a man in the normal sense, but more of a spirit or an entity that inhabits lamps. In this case, he would be the main character who causes strange things to happen around the lamps. For example, he might make the lamps flicker at certain times to send messages or warnings to the people around them.
The main character is the man with the lamp, of course.