History ThrowItIn / FanWorks

* [[TabletopGame/HoylesRulesOfDragonPoker Hoyle's Rules of Dragon Poker]] allows players to add cards from other games in and play them.

** Part of the reason for the convoluted TriangRelations is because of the huge arguments between the co-authors as to the end pairing. Now that they have parted, the debate seems to have eased off - for now.

* ''Fanfic/CitadelOfTheHeart'' is the first fanfic or story of any kind made by Creator/MF217 to feature the modern incarnation of his AuthorAvatar Grandis, which means this is also the very first incarnation of Grandis to feature several common developmental in-jokes to become [[AscendedMeme Ascended Memes]]; Grandis' DeepSouth accent, the ''Dimetrodon'' AnimalMotif, the MediumAwareness he exhibits being tied into his [[TheOmniscient omniscience]], [[spoiler:being a PuppetKing [[PeoplePuppets People Puppet]] who is controlled as a vessel by the author himself with Grandis' actual personality and behavior being a RiddleForTheAges,]] and the ''massive'' SelfDeprecation against the author in that Grandis is an exaggerated take on ''[[InnocentlyInsensitive every]]'' [[ThePigPen negative]] [[{{Jerkass}} quality]] the author personally has or has ever had, despite the author sometimes referring to him as his "[[BlatantLies an ideal version of himself]]".

* ''Fanfic/EscapeFromTheMoon'': In the sequel ''The Mare From the Moon'', Spliced's [[RedBaron moniker of “Viral Maniac”]] was suggested by a user on the Spacebattles thread well over a year prior to making it into the story.

** AZ appeared in [[ChristmasEpisode the first Holiday Special]], by the author's own admission, because of ''Anime/PokemonGenerations'' episode 18, which aired on the 23rd of December.

* The ''Fanfic/FobbiesAreBorange'' {{spinoff}} ''Loids Are Not Christmas'' is completely improvised, leading to such [[MemeticMutation memorable lines]] as "I'MMA HIT IT... ''WITH MY HAND.''"
* ''WebVideo/PokemonTabletopUtopusRegion'': At one point in the arc with GuestCharacters Team Peasant Poppers, the DM mentions the characters heading west when they clearly aren't. He laughs it off with 'Yeah, see, my setting has ''two'' wests', prompting Phoenica to take out a compass shaped like a star. A few episodes later, this becomes worked into Nera Scuro's backstory: Her hometown is in the original direction of west, and when west officially changed (for no apparent reason) deliveries became almost impossible. As supplies started running low, Nera was forced to turn to pick-pocketing to make ends meet.

** Per WordOfGod, [[spoiler: Tarakudo]]'s brief cameo at the end of Chapter 16 was a last minute addition.

* While writing ''Franchise/SonicTheHedgehog'' fanfic, ''Fanfic/PrisonIslandBreak,'' author Breech Loader's computer apparently suffered a malfunction and 15 pre-written chapters - including those pertaining to the vital 'riot' arc - were lost. Breech managed to re-write 15 chapters in three weeks. By her standards for chapter lengths, that's about 52,500 words. That's 2,500 words ''per day.'' An awful lot of things changed.

* Thanks to Creator/NimbusLlewelyn's confessed tendency towards WritingByTheSeatOfYourPants when it comes to the fine details, this happens frequently in his stories, particularly in ''Fanfic/ChildOfTheStorm'', when he threw in a teenaged [[ComicBook/MsMarvel Carol Danvers]] and [[ComicBook/XMen Jean-Paul Beaubier]], and a few chapters later, a teenage OC called Uhtred and a pre-teen [[ComicBook/WonderWoman Diana of Themyscira]], just so Harry would have people his age outside Hogwarts to interact with, and picked more or less at random. All four have had considerable CharacterDevelopment and become important parts of the supporting cast, with Carol ascending from [[AscendedExtra extra]] to borderline {{Deuteragonist}} by the sequel.

** In their ''Anime/DragonBallZ [[Anime/DragonBallKai Kai]] Abridged Episode 2'' alone, we have Vegeta coughing up blood during Goku's "You killed Vegeta!" line (because Masako flubbed a take), Freeza flipping everyone off when asking "Who's next?" or even the same arm re-edited for a visual gag when it falls next to Freeza's dying form when he tells Goku that his spaceship is "That way".

* InUniverse in the ''WesternAnimation/MiraculousLadybug'' fic ''[[https://archiveofourown.org/works/10901358 Under Lock and Key ]]''. Adrien is supposed to have a Victorian themed photoshoot. However, since him and Marinette are in a ChainedHeat situation and won't be out of it for a couple more days, it is changed into a [[https://i.imgur.com/TOj08CC.png rocker couple one]].

* ''WebVideo/PokemonTabletopUtopusRegion'': At one point in the arc with GuestCharacters Team Peasant Poppers, the DM mentions the characters heading west when they clearly aren't. He laughs it off with 'Yeah, see, my setting has ''two'' wests', prompting Phoenica to take out a compass shaped like a star. A few episodes later, this becomes worked into Nera Scuro's backstory: Her hometown is in the original direction of west, and when west changed deliveries to the town became almost impossible. As supplies started running low, Nera was forced to turn to pick-pocketing to make ends meet.

* ''WebVideo/PokemonTabletopUtopusRegion'': At one point in the arc with GuestCharacters Team Peasant Poppers, the DM mentions the characters heading west when they clearly aren't. He laughs it off with 'Yeah, see, my setting has ''two'' wests', prompting Phoenica to take out a compass shaped like a star. A few episodes later, this becomes worked into Nera Scuro's backstory: Her hometown is in the original direction of west, and when west changed deliveries became almost impossible. As supplies started running low, Nera was forced to turn to pick-pocketing to make ends meet.

* During the Roleplay/DCNation Olympics Arc, it was completely unintentional for Hades to actually kill Arsenal. The intent by the plot-runner and Hades-mun was just to get him high, removing him from the fight. The fact the Roy player ran with it and made Hades simulate a heroin ''overdose'' completely changed the ending, prompting the SadisticChoice the Greek Gods would force on Donna later.
* In Part III of ''WebAnimation/BartTheGeneral'', a door bell can be heard ringing in the background when Bart talks about throwing a sponge at a mirror.
* ''FanFic/QueenOfAllOni'': Chapter 14 has a scene of most of the Shadow Hand playing poker, and another of Right comforting Jade after her [[CallingTheOldManOut confrontation]] with her father. Neither was originally planned, but were added spur of the moment.

* While writing ''SonicTheHedgehog'' fanfic, ''Fanfic/PrisonIslandBreak,'' author Breech Loader's computer apparently suffered a malfunction and 15 pre-written chapters - including those pertaining to the vital 'riot' arc - were lost. Breech managed to re-write 15 chapters in three weeks. By her standards for chapter lengths, that's about 52,500 words. That's 2,500 words ''per day.'' An awful lot of things changed.