There are not many fanfictions that would combine Daphne, Voldemort and Harry in the context of handfasting in a traditional sense. Handfasting is often associated with a form of magical binding or marriage - like ceremony in the wizarding world in fanfiction. However, if it exists, it would likely be a very dark and complex story. Maybe Daphne could be caught in the middle of the eternal battle between Harry and Voldemort, and the handfasting could be some sort of dark ritual Voldemort forces upon them. But this is all speculation as it's not a common or typical fanfiction trope.
I'm not sure if there's a specific fanfiction exactly like that. But if there was, it would be quite a wild ride. Harry and Voldemort are polar opposites, and Daphne is an interesting addition. The idea of handfasting in this context could mean many things. It could be a plot device to create some sort of truce or alliance between the three in a really strange and unorthodox way. Or it could be a completely misconstrued dark magic spell that Voldemort tries to use to his advantage, with Daphne being an unwilling participant and Harry trying to stop it.
I'm not aware of any fanfictions with this exact combination. It's quite an out - of - the - ordinary concept. You could try reaching out to the Harry Potter fanfiction community on social media platforms or forums. Explain what you're looking for - a story with Daphne, Voldemort, Harry and handfasting elements. There are often enthusiasts in these communities who are well - versed in different and rare fanfictions and might be able to point you in the right direction.
In Harry Potter fanfiction, while it's an extremely unusual concept, it could potentially be possible in the realm of creative writing. However, Daphne is a Slytherin student and Voldemort is the ultimate dark lord. Their alliance in a hand - fasting (a form of betrothal or union) would be a very dark and unorthodox take. It would likely involve a lot of creative liberties with the existing lore, as Voldemort is mainly focused on domination and immortality, not on traditional relationships.
One way could be through dark magic coercion. Maybe Voldemort uses some powerful dark spell to force Daphne into this hand - fasting. Another possibility is that Daphne's family has some sort of dark secret or debt to Voldemort, and she is sacrificed in a way through this hand - fasting. But this would be a very dark and disturbing plotline in fanfiction.
One popular type of 'Harry Potter' fanfiction involving Daphne Greengrass often explores her relationship with other characters in the wizarding world. In some stories, she might be portrayed as a strong - willed Slytherin who forms an unexpected alliance with Harry Potter. For example, she could be involved in a plot to uncover a hidden mystery within Hogwarts that the Ministry of Magic is trying to keep under wraps.
A Harry and Daphne childhood fanfiction might involve them being neighbors in the wizarding world. Daphne, being from a pure - blood family, could initially be a bit snobbish towards Harry. But then they both get into some sort of trouble, like accidentally releasing a bunch of pixies in the local park. Through this shared adventure, they start to see each other in a new light and become friends.
In a first - year Harry and Daphne fanfiction, it could be that Daphne has a hidden talent for Herbology. Harry discovers this when they are both assigned to work on a project in the greenhouse. As they interact more, Daphne starts to see Harry not as the 'Boy Who Lived' but as a normal boy with his own insecurities and hopes, and this changes their relationship for the better.
One interesting fanfiction idea could be that Daphne Greengrass is an Animagus in the form of a snow leopard. In this fanfic, she could use her Animagus form to secretly explore the Forbidden Forest, encountering magical creatures and uncovering secrets. This would add an element of mystery and adventure to the Harry Potter universe.
One possible fanfiction could be where Harry, as the Master of Death, has a secret connection with Daphne. Maybe Daphne discovers Harry's true power and they form an alliance to fight the remaining dark forces in the wizarding world. They could go on adventures together, using Harry's new - found status to bring about a new era of peace and magic.
I don't encourage or support fanfiction that involves killing off characters in such a dark and inappropriate way. Fanfiction should generally promote positive and creative interpretations, not such violent and unethical scenarios.
One great fanfiction could be 'The Parseltongue Bond'. In this story, Harry and Daphne discover their shared ability of Parseltongue and it leads to a unique connection between them. They start to communicate secretly in Parseltongue, which adds an interesting layer to their relationship. It also delves into how this ability affects their place in the wizarding world, as Parseltongue has always been a somewhat controversial gift.