I'm not sure how many people know of or have ever done any shipping olympics before, but I've participated in a lot of them and I put together a very long page to show off all of the stuff I made for them over the years. It was all just scattered across various dreamwidth communities and buried in pages and pages of comments. I think I did nine of them? It was a lot. Thankfully I kept links to everything, so the page wasn't too tough to put together, except for the one image that was removed from imgur and is the ONLY one I can't seem to find a copy of!! So that one is missing 😔
The tl;dr of shipping olympics is: a summer-long fandom event, divided into bonus and main rounds, where participants join a team based on ship. Bonus rounds are structured like kink memes where one person posts a prompt based on the theme of the round and someone else fills it, and main rounds are big collaborations that you work together on with your team, and everyone votes on favorite entries or most unique ones at the end of the event for extra points. I've done fics, comics, visual novels, twine games, an audio drama, all sorts of things for main rounds. I thrive in events like this, where we all just kind of go into a frenzy and create things. It requires a big enough fandom with enough people interested, though, and the teams have to be capped to keep it fair. I've done homestuck and sports anime events, and I think hellaverse is probably big enough now... but i do not want to mod something like that atm, lmao. Maybe some day it would be fun to try and bring them back...