You can try looking on fanfiction websites like FanFiction.net or Archive of Our Own. They have a wide variety of fanfictions. Just search for '102 Dalmatians Waddlesworth' in their search bars, and you might find some great stories.
Another option is to check out social media platforms like Tumblr or Twitter. There are many fan communities on these platforms. You can search for relevant hashtags such as #102Dalmatians or #WaddlesworthFanfiction. Sometimes, fans will post links to their fanfictions or recommend ones they've read.
In a fanfiction, Waddlesworth and Oddball could be the heroes of the Dalmatians. When the group of Dalmatians is in trouble, perhaps facing a new villain who wants to capture them all. Waddlesworth, with his cleverness, and Oddball, with her unique skills (maybe she can do something extraordinary because of her different genes), they team up to outwit the villain and save their Dalmatian family.
One plot idea could be Waddlesworth getting lost in the big city and having to find his way back to the Dalmatians. He could encounter various other animals along the way, some friendly and some not so much, which would make for an exciting adventure.
A plotline could be that Waddlesworth and Oddball get separated from the rest of the Dalmatians during a journey. They then have to rely on each other to survive in the wild. They face various challenges like finding food and shelter, and along the way, they grow closer as friends.
First, you should decide on the main character. It could be one of the well - known dalmatians like Pongo or Perdita, or you could create an original dalmatian character. Then, think about the setting. Will it be in their home, on a journey, or in a new and strange place?
Begin with a strong opening. It could be a scene that grabs the reader's attention, like the dalmatians being in a dangerous situation right from the start. This will make the readers want to know what happens next. Then, as you write, keep in mind the personalities of the dalmatians. Are they brave? Playful? Use these traits to drive the story forward.
In a fanfiction about Pongo and Perdita, they could have a new adventure in a different part of the city. Maybe there was a big dog show coming up. Pongo was excited because he thought it would be a great opportunity for all their puppies to show off their unique spots. Perdita was a bit more cautious. She worried about the safety of the puppies in a new and crowded environment. But Pongo convinced her. At the dog show, they met all kinds of different dogs. There were some who were a bit snooty, but Pongo and Perdita just ignored them and focused on having a good time with their puppies.
First, think about the main character among the dalmatians. It could be one of the puppies or an adult dog. Then, decide what role the spots will play in your story. For example, if you want the spots to be a sign of a special power, start building the world around that concept. You can also start with a simple scenario like the dalmatians going on an adventure and the spots being a key factor in that adventure, like they glow to show the way.
For character development, you could focus on the 102nd Dalmatian being an outcast at first. Maybe it has a different - colored spot or a unique behavior that makes the other Dalmatians hesitant to accept it. But as the story progresses, it shows great courage and loyalty, winning the others over.
One interesting fanfiction could be about Lucky's adventures on his own away from the other Dalmatians. Maybe he stumbles upon a magical place in the forest that only he can see.
The jewel could be a source of special powers for the Dalmatians. For example, it could give them the ability to communicate with other animals in a more complex way. This would help them when they are trying to escape from Cruella or her minions.