Well, without having read the 'Magic Rug A Christmas Story' specifically, we can only guess. A likely main character would be the owner of the magic rug, probably a child full of wonder and excitement for Christmas. There could also be a wise character, like a Christmas spirit or an angel, who guides the use of the magic rug. And of course, there could be other children or family members in the story who are affected by the adventures that the magic rug enables.
I'm not entirely sure about the specific 'Magic Rug A Christmas Story' but it sounds really interesting. Maybe the magic rug is a gift on Christmas. It could bring the characters on adventures to spread the Christmas spirit, visiting places where people need some holiday cheer and using its magic to make Christmas special for them. It might also have some kind of connection to Christmas magic, like elves or reindeer could be involved with it.
Maybe there's a family, including a mother, father and their kids. They are all intrigued by the magic Christmas tree. There might also be a reclusive hermit who lives near the tree and has a special connection to it. He warns the villagers about misusing the magic of the tree.
In a possible 'Magic Mushroom Christmas Story', there could be a main character who is an elf. This elf might find the magic mushrooms and use their power to solve a problem in Santa's workshop. There could also be a wise old owl that lives in the forest where the mushrooms grow and serves as a guide to the characters about the mushrooms' magic during Christmas. And of course, Santa himself could be a central character, as the magic mushrooms' influence might impact his Christmas preparations.
Since I don't know the exact story, it could be that the main characters are the people who are guided by the magic star. Maybe there are some children who follow the star's light to find something special. There could also be some kind of Christmas spirit or angel associated with the star.
There might also be an old wizard in the'magic christmas story'. He could be the one who casts a spell that makes Christmas extra special that year. He might help the townspeople decorate their village in a magical way, with lights that never go out and snow that sparkles like diamonds.
Rachel is surely a main character in this story. As for the rug merchants, they are also key. There might be an older, more experienced rug merchant who acts as a sort of mentor to Rachel, teaching her about rugs. And there could be a young, ambitious rug merchant who has different ideas from the traditional ones, and Rachel gets caught in the middle of their different approaches.
I'm not sure as I haven't read the 'under the rug short story' specifically. But usually in a short story, there are a few central characters. It could be a protagonist who discovers what's under the rug and an antagonist who is trying to keep it hidden.
As I haven't read 'the magic key christmas story', it's impossible to be certain about the main characters. However, if we think about common elements in Christmas stories, there might be a young protagonist, perhaps a girl or a boy, who discovers the magic key. There could also be a wise character, like a wizard or an angel, who guides the protagonist in their journey with the magic key during Christmas. And of course, there could be some family members who are affected by whatever the magic key unlocks, whether it's a magical Christmas world or a special event that changes their Christmas for the better.
I don't know the story, so I can't say for sure. But it could have characters like Santa Claus, elves, or a little child who discovers the magic bells.
The main idea might be centered around how the new rug changes the rabbits' daily life. It could be that the rug provides them with a new place to relax, play or socialize, which is different from their usual environment in the burrow or the forest.