One idea could be Penny's adventures in the city before she meets the Dalmatians. Maybe she's on a quest to find a special item and her path crosses with the puppies by chance.
Perhaps Penny discovers a hidden talent within herself that helps the Dalmatians in a time of great need. It could be something like she has an uncanny ability to communicate with other animals in the city, and she uses this to gather information to keep the puppies safe from Cruella. This would make her not just a side character but a crucial part of the Dalmatians' journey.
A more complex idea for 101 dalmatians fanfiction could involve a mystery. For example, strange things start happening around the dalmatians' home. Items go missing, and there are strange noises at night. One of the more curious dalmatians decides to solve the mystery, suspecting that it might be a jealous neighbor or an escaped circus animal.
One idea could be exploring the adventures of the 103 dalmatians in a new city. They could encounter different dog breeds and have to work together to overcome challenges like finding a safe place to stay or getting enough food.
Another interesting aspect could be focusing on the relationship between the puppies and their parents. Maybe creating a story where the puppies get lost and the parents have to use their unique skills to find them. This can add a lot of drama and emotion to the fanfiction.
One idea could be a fanfiction where the spots of the dalmatians have magical powers. For example, they can create portals to different places. Another could be a story about a dalmatian puppy who is born without spots and his journey to find a way to get them. Maybe there could also be a fanfiction where the spots are actually a map leading to a hidden treasure.
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.
One idea could be a story where one of the dalmatian puppies gets lost during a family outing and has to find its way back home by following the scents and memories of the places they've been. It could face various challenges like crossing a busy road or avoiding other unfriendly animals.
A plot could revolve around Roger and Anita hosting a big party for all the dalmatians' friends. They have to plan everything from the food to the entertainment. Roger might be in charge of the music and Anita the decorations. Along the way, they encounter some problems like not having enough food or a sudden rainstorm threatening to ruin the party, but they manage to solve them together.
One idea could be exploring how the dalmatians' world is connected to the Kingdom Hearts universe in terms of magic. Maybe the dalmatians have a special kind of magic within them that can help Sora in his battles. Another could be a story where the dalmatians are being hunted by Heartless and Sora has to protect them. Also, perhaps there's a secret about the dalmatians' spots that has significance in the Kingdom Hearts lore.
One idea could be that the puppies discover a hidden map in their doghouse that leads them to a long - lost treasure of the Dalmatians. They then have to outwit Cruella de Vil's descendants who are also after the treasure. Another could be that the puppies befriend a group of stray animals in the city and together they work to rescue a group of kidnapped puppies from an illegal pet - trading ring. A third idea is that the puppies find a magical portal that transports them to a different world where they have to use their wits and unique Dalmatian skills to find their way back home while also helping the creatures in that strange world.
One idea could be a story where Gumball and Penny go on a mystery-solving adventure in Elmore. They could discover a strange phenomenon that's affecting the town and use their unique skills to figure it out.