So, I made a mod for Oblivion.
A very simple one, adding working (blessing-bestowing) altars to the Temple of the One in the Imperial City. It's the only city temple in the game that didn't have those things, so it always stuck out to me like a sore thumb. After getting Oblivion for PC recently, I decided to fix this inconsistency.
It was easy work, though tedious. I even managed to have them break when the temple gets destroyed (which was actually a lot easier to do than I thought). If anyone had ever tried making mods for Morrowind and/or Oblivion I'd love to exchange experiences.
It's hosted on the Oblivion Nexus
You can also download it here: AotO-50507-1-0-1604617982.zip
It's my second mod ever released publicly, the first one was posted on this site exclusively (though I never considered it a finished product).
Anyways, I'm rambling. If any of you still have Oblivion, feel free to give it a try.