First of all, thank you so much for writing for me! Fics that combine two or more fandoms in some way are among my favourite things to read/write, so I'm pretty excited for this exchange. Please keep in mind that I intend for this letter to be guidelines/suggestions, not demands. Please, do not feel restricted by my prompts. If an idea grabs you, run with it! I don't want writing for me to be stressful, plus there are millions of crossover ideas floating out there that I would love to read, but would never think to prompt. Whatever you end up writing, have fun!
I've split this letter into three sections: (1) general likes and DNWs, (2) fandom-specific likes and DNWs, and (3) crossover prompts.( letter below the cut )
I hope there's something helpful in there :)
Good luck, author! Have fun :)