One common theme is adventure. Roger often goes on wild adventures in different parts of Toontown or sometimes even outside of it. For example, he might be searching for a lost treasure or trying to save a friend from a dangerous situation.
Yes, there are quite a few. Some might focus on female characters in the Roger Rabbit universe having new adventures, like Jessica Rabbit's sister (if we imagine she has one) exploring Toontown in a way that hasn't been shown in the original. Another could be about a female human who gets transported into the Toontown world and has to interact with Roger Rabbit and his friends. There are also fanfictions that might give a backstory to some of the female toons in the world.
It could be a variety of characters. Maybe it was an enemy seeking revenge or someone with a hidden agenda. But it really depends on the specific fanfiction plot.
Well, a prevalent theme is exploration. Female characters could be exploring the unknown parts of Toontown that haven't been seen before, with Roger Rabbit as their guide or partner. Another is the theme of justice. In some fanfictions, they might be fighting against the bad guys in Toontown, like the ones who try to take over the toon world. And of course, there are fanfictions with the theme of love, not necessarily romantic love, but love in the sense of caring for friends and the toon community, which Roger Rabbit is a part of.
Well, Roger Rabbit had a very special bedtime routine. He would start by making sure all his little toys were neatly tucked away in their corner. After that, he would take a small sip of warm carrot juice that his mother had left for him. He then curled up in his bed which was covered with a warm, checkered blanket. Roger thought about how much he loved his home in Toontown. The gentle breeze outside his burrow made a soft whistling sound that was like a lullaby. He closed his eyes, imagining himself flying over the colorful fields of Toontown in his sleep.
One great Roger Rabbit fanfiction is 'Roger's New Adventure'. It takes Roger into a modern-day Toontown where he has to deal with new technology that confounds his old - fashioned toon ways.
Well - developed characters. A great fanfic would really dig into the personalities of Roger and Jessica. It should show their relationship in a new light, perhaps exploring their backstories more deeply or showing how they interact in different situations than in the original movie.
You can start by looking at fanfiction websites like Archive of Our Own. There are often a lot of fan-created stories about Roger Rabbit and Jessica Rabbit there. Just search for their names in the search bar, and you'll be presented with various fanfics to choose from.