Fantasy One-Shot

The PCs are respected lizardfolk who must secure an orcish helmet. It might involve dwarves.
There is a ruthless group of raiders who betrays them partway through.
The characters start during a heist. At some point they meet an old foe. If things get stuck there is a fire.
Afterwards there is feasting in an inn.

The PCs are emotionally-scarred rulers of a city-state who must map out a warded garden. One or more characters are dressed in costumes. It might involve elemental water.
There is a drunk sage who falls in love with a character. they are the former employer of a character.
The characters start with an attempted theft. Early on they encounter a complex puzzle. If things slow down a magic item develops new powers.
At the end there is a funeral. Possible sequel... an evil organisation's plans were ruined and try to take revenge on the characters

The PCs are chaotic orcs who must collect a bounty on a repulsive vampire. A character is being hunted by a monster. The mood might be... tense
There is an insane warlock who works against them.
The characters start outside some ruins. Partway through they encounter a magical door. If things get stuck they discover a secret door.
It finishes with a reward of a dragon's hoard.

The PCs are egotistical leaders of a cult who must escape from a legendary temple. It might involve dragons.
There is a well-dressed scout who works against them.
The characters start with a fireball. Early on there is a chase scene. If things get stuck they receive a useful sending.
It finishes with a reward of a big favor.

The characters are chaotic charlatans who must slay a famous life demon. A characters is on a personal quest here.
It is at a draconic library which is touched by frost magic.
There are a group of helpful orcs seeking a wight. And an oracle wants to stock a dungeon for a deity.
At some point a planar portal opens.
As the adventure progresses the characters receive a series of visions