There might be a fanfiction where Edward has to deal with a strange malfunction that gives him unique abilities. For example, he could suddenly be able to understand the thoughts of all the other engines. This would lead to some very interesting interactions and situations as he tries to keep this a secret while also using it to help his friends.
One interesting story could be about Edward and Emily working together to rescue a stranded train. They use their combined strength and smarts to get the job done.
Perhaps there could be a story where Thomas and Edward compete in a friendly race. Along the way, they both learn important lessons about sportsmanship and friendship. For example, when one of them has a minor accident, the other stops to help, realizing that winning isn't everything.
One plot idea could be that James and Edward get into a friendly competition to see who can pull the most cars in a day. Another could be that they have to work together to rescue a stranded train during a storm. Maybe there's a situation where James gets in trouble for being too boastful and Edward has to help him learn a lesson about humility.
There could be a fanfiction where Thomas goes on an adventure outside of Sodor. He meets new engines in different lands, learns about their cultures and ways of working, and brings back new ideas to Sodor. For example, he might discover a more efficient way of shunting that he shares with Percy and the others.
One interesting story could be about a human character who becomes a train engineer in the Thomas and Friends world. They might have adventures trying to understand the unique personalities of each train, like dealing with Thomas' eagerness or Percy's sometimes timid nature.
One interesting Thomas and Friends human fanfiction could be about the engineers as humans and their adventures in maintaining the trains. For example, they might face a big challenge like a natural disaster threatening the railway and they have to work together with the 'humanized' trains to overcome it.
In fanfiction, they could face a big crisis together, like a major bridge collapse that blocks the railway. As they work side by side to fix the problem and keep the railway running, their bond of friendship would grow stronger. They might have to rely on each other's unique skills, with Thomas being fast and Edward being strong.
One interesting Thomas Friends bedtime story could be about Thomas helping a lost little engine find its way back home. He uses his kindness and knowledge of the tracks to guide the lost engine.
One possible story could be that Percy gets into trouble and Gina comes to his rescue. For example, Percy might get stuck on a broken track, and Gina, with her quick thinking and strength, helps him out. It could show their friendship and how they support each other in difficult situations.
Perhaps there's a story where Thomas and Emily have to team up to win a race against some new engines that come to the island. During the preparation for the race, they discover new things about each other and their own capabilities. Emily might learn some of Thomas's quick - thinking strategies, and Thomas might learn from Emily's determination.