One character that would make for an interesting pairing with Doflamingo in a crossover fanfiction is Zoro. Zoro's strong sense of justice and his skills as a swordsman would clash with Doflamingo's devious ways. They could have epic sword battles, and Zoro might be the one to cut through Doflamingo's strings, both literally and metaphorically. Also, Nami could be paired with Doflamingo. Nami's intelligence and ability to manipulate situations for her own gain, although in a more positive way compared to Doflamingo, could lead to some really interesting interactions. She could try to outwit him in a game of wits.
One idea could be that your pet Doflamingo has a unique ability that helps the Straw Hat crew in a strange way. For example, it can sense danger from far away, like when the crew is about to be attacked by the Marines. It might use its flamboyant appearance to distract the enemies while the crew escapes.
Sure, it's highly likely that there are fanfics like this out there. In the world of 'One Piece' fanfiction, all kinds of scenarios are explored. A story with female Luffy and Doflamingo could delve into how their personalities, which are so different in the original series, interact in a new and unique way. It might also play with the themes of good and evil, freedom and control in a different light, depending on how the author writes it.
One popular 'One Piece Crocodile x Doflamingo fanfic' is 'The Unlikely Alliance'. It delves into their complex relationship within the One Piece universe. The story shows how their different motives and personalities interact in unexpected ways.
Often, these fanfictions highlight their power and influence. Doflamingo's devious nature and Crocodile's calm and calculating demeanor are usually well - portrayed. For example, in some, they might be shown as rivals vying for control in the underworld of the One Piece world.
Their relationship could start with distrust. Aokiji being a former Marine and Robin being a wanted archaeologist. But as they interact more, they might find common ground in their search for truth. Maybe they start to share stories about their pasts, which slowly builds a bond between them.
One interesting plot idea could be that Aokiji, after leaving the Marines, crosses paths with Robin. They start to share their knowledge of the lost history. Aokiji's past experiences in the Marines and his knowledge of certain secrets could complement Robin's search for the true history. Another plot could involve them teaming up against a common enemy who is trying to destroy all evidence of the Void Century. They use their unique abilities, Aokiji's ice powers and Robin's ability to sprout body parts on any surface, to fight off the enemy and protect the ancient artifacts related to the One Piece world's history.
Another plot could revolve around an OC who is a former victim of Doflamingo's cruel rule. This OC could be on a quest for revenge. They might start by gathering allies who were also affected by Doflamingo and then plan a elaborate scheme to take him down. Along the way, they could face many challenges and obstacles set by Doflamingo and his loyal followers.
Create a unique bond between the main character and the pet Doflamingo. Maybe it was found during a dangerous adventure and the main character saved it. This bond can drive the plot forward, like the pet constantly trying to protect the main character or the main character teaching the pet about kindness in a cruel One Piece world.
The power combination. Crocodile's sand - based powers and Doflamingo's string powers can create really cool and unique fight scenes in fanfiction. For example, in some stories, they use their powers together to take on a much stronger foe.