In a My Little Pony fanfiction, the laughing gas could be a part of a celebration gone wrong. The ponies were planning a big party and brought in some strange new substance thinking it was a fun new party favor. But it turns out to be laughing gas. Pinkie Pie loves it at first and spreads it around, but then they realize it's causing chaos as ponies can't stop laughing and are unable to do important things like prepare food or decorate. So they have to figure out how to contain it and get back to normal.
One idea could be that some ponies accidentally discover laughing gas in an old, forgotten part of Equestria. They start to giggle uncontrollably and it spreads among the ponies in a comical way, leading to all sorts of silly situations like ponies floating in the air because they're laughing so hard while trying to do normal tasks.
Well, perhaps in a fanfiction, there's a villain who uses laughing gas to disable the defenses of Ponyville. The ponies have to find a way to stop the effects of the gas and overcome the villain. Maybe Twilight Sparkle uses her magic to create a counter - spell that neutralizes the laughing gas, all while the other ponies are trying their best not to laugh and keep their focus on the task at hand.
It could be a story where the My Little Pony characters encounter laughing gas in some kind of strange situation. Maybe they stumble upon a canister of it in a magical forest and their reactions to inhaling it accidentally. For example, they might start giggling uncontrollably and their normal behaviors could be disrupted in a comical way.
I'm not sure specifically what that particular 'My Little Pony giggle laughing gas story' is. It could be a fan - made or very specific story within the My Little Pony fandom that involves a character giggling because of laughing gas. Without more context, it's hard to say exactly.
There could be an adventure where the ponies have to find a way to stop the spread of the laughing gas. Maybe it was accidentally released by a clumsy wizard and is now making all the animals in the forest laugh uncontrollably. The ponies would set out on a journey to find the source of the gas and figure out how to contain it.
One idea could be a pony being reborn with memories of a past life in a different pony world. They could use that knowledge to bring about positive changes in Equestria, like finding new ways to solve friendship problems.
One idea could be that the Dazzlings try to reform and join the main group of ponies in Ponyville. They struggle to overcome their past of using dark magic to steal harmony and learn to use their powers for good.
Well, a plot could involve a villain trying to steal all the cupcake recipes in Ponyville. The ponies then have to work together to protect their precious recipes. It could also be about a pony who has lost their sense of taste and has to go on a journey to regain it by trying different cupcakes. Or perhaps there's a mystery surrounding an ancient cupcake recipe that holds a great secret.
I'm not aware of any official comic or animation specifically for the'my little pony giggle laughing gas story'. It could be a fan - created concept that hasn't made it to an official medium yet.
Maybe it could be something that is found in an ancient, sealed - off cave that was once used by an old pony civilization. The ponies discover it while on an adventure. They could then have to deal with the effects of the gas in a way that also explores the history of their world. So it becomes a part of the discovery and adventure plotline and doesn't seem out of place.
One interesting plot could be the human adjusting to the magical world of Equestria. For example, learning to use magic or getting used to the different species and their cultures. Another idea is the ponies trying to understand human behavior and needs. They might be confused by things like human technology or the lack of a horn or wings.
One interesting plot idea could be a mystery during the wedding. For example, a valuable item goes missing right before the big moment. Another could be a character from the guests' past shows up unexpectedly and has some unresolved issues with the bride or groom. A third idea might be that there are some magical mix - ups that cause comical chaos during the ceremony.