D&D One Shot

The characters are mercenary humans who must ransack a dwarven castle.
It is at an enchanted magical laboratory which is associated with animals.
There are a few unfriendly bandits worshipping many-eyed creatures. And the spirit of a necromancer is trying to escape from a crystal ball.
At some point there is a explosion.
As the adventure progresses people start to gather for a funeral

The PCs are chaotic ogres who must befriend/tame a repulsive ogre. The mood might be... deep
There is a rival villain who falls in love with a character. they are the rival of a character.
The characters start with an explosion. At some point they encounter a planar portal. If things are going nowhere a deity sends an omen.
It finishes with a reward of a big favor.

The PCs are an elite military squadron who must destroy a magnificent ruins in the Shadowfell. It might involve genies.
There is a loyal bard who offers them aid.
The characters start during an attempted escape. At some point there is a wedding. If things are going nowhere an ally turns up with useful information.
Afterwards there is a reward of a dragon's hoard.

The PCs are powerful landowners who must drive a herd of mammoths. A character is accompanied by an annoying sibling. It might involve an artifact.
There is a traveling paladin who tries to help them.
The characters start in a fight. At some point they encounter an ooze. If things slow down they uncover a secret stockpile.
Afterwards there is one of the characters dead or unconscious.

The characters are successful leaders of a cult who must capture a reckless knight.
It is at a magnificent wizard's tower which is disguised by a hallucinatory terrain.
There are ogres quoting from a scroll on wine. And a crazy captain seeks to escape from a foreboding orchard.
At some point they receive a useful sending spell.
As the adventure progresses a series of spectral laughs signal the arrival of an elder being