D&D One Shot

The PCs are good entertainers who must stock a dungeon for a deity. It might involve revenge.
There is a wise lycanthrope who hates one of the characters.
The characters start during a heist. Partway through there is a funeral. If things slow down they discover a secret door.
It finishes with the characters splitting up treasure.

The PCs all belong to a circus who must find a murderer at a masked ball. The mood might be... surreal
There is a popular noble who hates one of the characters.
The characters start in a tense stand-off. Early on they encounter dangerous fungi. If things are going nowhere they discover an unexpected place to rest.
Afterwards there is someone imprisoned. Possible sequel... a clue from a reward or treasure points to an infamous dungeon...

The PCs are fugitive rogues who must destroy an intelligent shield. The mood might be... whimsical
There is an aggressive fighter who falls in love with a character.
The characters start in a chase scene. At some point foes are waiting for them. If things are going nowhere there is a strong wind.
It finishes with a reward of a favor. Possible sequel... an evil organisation's plans were ruined and try to take revenge on the characters

The PCs are penniless druids who must make a trade with a mutant genie. The mood might be... manic
There is a loud healer who sets them the quest.
The characters start running away from something. Early on there is a feast. If things slow down a statue points them somewhere useful.
At the end there is an idyllic rural scene.

The PCs are dramatic acolytes who must make a trade with a beautiful sahuagin priestess. It might involve the Shadowfell.
There is a wise villain who sets them the quest. they are the parent of a character.
The characters start with a fireball. At some point they spot foes who are unaware of them. If things slow down a friendly animal leads them in the right direction.
At the end there is a religious ritual.