Your protagonist, the hero of prophecy, also happens to be a lawyer (in a world where such things exist). When he defeats the evil overlord and brings him into the proper authorities, he also must defend said evil overlord in court.
An ink-sword whose hilt resembles a pen, and whose blade can be retracted into said hilt to become an actual pen. The blade becomes shorter the more the pen writes.
Your protagonist is born with the ability to see health bars over people’s heads representing the amount of time they have left to live in a world where healing magic doesn’t exist (or maybe it can, your choice). She can’t see the bar over her own head.
A world that exists on a canvas, whose creators can paint new things into existence or alter things that already exist.
Rather than bleed or bruise when struck, people and animals just go flying, cartoon-style. The more hits they take, the farther they fly.
A society wherein women receive presents for their children’s birthdays, and children receive presents on days that mark the anniversaries of things they actually accomplished through their own power rather than just being born.
Two opposing societies built on a battlefield with little to no shelter. Semi-immortal soldiers fight and die over and over again, marry, give birth, and raise kids to follow this pattern.
An explorer comes across a tribe of jungle people who speak purely in song and musical-style dance numbers. The explorer learns how they come up with all this (it’s a rehearsed defense against outsiders — make them think the tribe is completely bonkers and leave) and tells the king of his own land, who figures it’s just stupid enough to work, and pretty soon people go to war singing and dancing with both their comrades and enemies.
A werewolf race where the wolf is the default form and the human is the weird thing that everyone is afraid of.
So I finally figured out how to monetize this blog without being annoying: Patreon. It’s an online tip jar where you can support content creators by paying them as much as you want per month. It’s completely optional and always will be.
I won’t beg for donations. Writing prompts is a hobby for me, not a job; I don’t depend on donations to live. If I ever get enough funding to make it pay like a job, I’ll increase my workload proportionally to include art and a full-color, story-based webcomic. I’ll stick a Patreon link over on the side bar to the left (or top right if you’re on mobile), and you can donate from there if you’d like.