A miscellaneous quest, which can be set anywhere (because the main action is in an interior cell)
Sheorograd dropped his favorite stuffed guar someplace inside his broom closet, but just can't find it again. If you can manage to find it, he'll reward you appropriately. It's probably not dangerous in there.
Agreeing to this, you find yourself suddenly in an interior cell, a boring room, with a door. You enter the door and find yourself in yet another room, but this one is stranger-- tipped sideways, and the chairs are floating. Or maybe the room is strangely small, or upsidown, or gigantic. In any case, you're in a house or cave designed by MC Escher at his worst, or Sheogorath on a normal day, and now your task is to find Mr Fluffles and get out.
Sheo's box o' fun may feature:
Rooms tipped sideways or upsidown
Doors that lead to random places
Doors that don't lead back to where you were even though you just came through them
Doors that are very small
Rooms that are very jumbled
Rooms that are scaled very big or scaled very small
Rooms that are inside out
Geometry that would make a Tardis dizzy
Strictly speaking, the point of this quest is "have puzzling fun but also find this one item to get a reward" so it is very simple quest-wise, and is more like an interesting dungeon than an involved quest. The setup makes it a quest and gives you a reason not to just teleport out of there.