Yes, there are likely some out there. Fanfiction is a vast world, and with the popularity of Harry Potter, authors often explore unique concepts like how characters might interact with food (appetite) and drinks like coffee in different scenarios. You can start by searching on major fanfiction platforms using relevant keywords.
Students from Hogwarts could be regulars. They might come during Hogsmeade visits. Also, young wizards and witches starting their careers in Diagon Alley would stop by. And of course, some of the older professors might pop in for a cup of their favorite brew.
A unique feature could be that the coffee shop has a sorting hat at the entrance that determines which table you sit at based on your personality, similar to the Hogwarts houses. The menu could be written in a magical parchment that changes depending on the time of day. Also, there could be live music from magical instruments like the harp that plays by itself. The walls could be adorned with moving portraits of famous wizards who seem to be enjoying their coffee too.
One possible plot could be that a character, say Harry, discovers the Muggle world of coffee during his visits to London and becomes addicted to it. This newfound love for coffee affects his appetite for the traditional Hogwarts food, leading to some humorous or interesting situations as he tries to balance his new taste with the old. For instance, he might skip the pumpkin pasties in favor of a coffee and muffin from a Muggle café.
A Christmas story mug usually has festive designs like Santa Claus, reindeer, or Christmas trees. It might also have quotes or scenes from Christmas stories.
One possible story could be that Harry, a young man, gets involved with the Italian mafia by accident while working in a coffee shop. He overhears some of their plans and has to figure out how to stay alive and out of their way.
I'm not really sure what'mug bob time stories' specifically are. It could be some kind of unique or personal collection of stories that only a particular group or individual knows about.
There's no way to tell for sure who the creator of'mug bob time stories' is. It might be a local storyteller in a small community who goes by the name Mug Bob. Or perhaps it's a pen name for a writer who wants to keep their identity a secret while sharing these stories.
Once upon a time at a Christmas office party, there was a mug exchange. Everyone brought a mug. John brought a really funny one with a reindeer that had a silly hat. When it was time to exchange, Mary got John's mug. She was so happy because she loved that reindeer design. It became her favorite mug to use during Christmas time for drinking hot chocolate.