The wagon train was a common sight in the old American West. The story of the Indian girl in relation to it could be about how she interacted with the settlers on the wagon train. Maybe she was initially wary but then formed some sort of friendship or alliance. For example, she could have helped them find water or food in the unforgiving wilderness in exchange for some goods like beads or cloth.
A common element is the sense of wonder. The balloon often has some extraordinary quality like growing beyond normal size or having special powers when inflated. For example, it might be able to fly when it reaches a certain size.
One mma bedtime story could be about a young fighter named Tom. He trained hard every day in the MMA gym. One day, he got a chance to compete in a big tournament. Despite being nervous, he remembered all his training and fought bravely, and in the end, he won, which taught kids the value of hard work.
Going shopping together is really fun. We can give each other fashion advice and try on different styles of clothes. Also, having a picnic on the campus lawn is great. We share food, tell jokes, and enjoy the sunshine.
You could start with the idea that the Monopoly game is a training exercise created by a powerful ninja. The players have to not only win the game but also learn valuable ninja skills along the way. For example, if they pass 'Go', they gain a new jutsu instead of just getting money.
One way could be to turn it into a story about rescuing a friend from a situation that was like slavery in some way, perhaps a metaphorical slavery such as being trapped in a toxic job or a bad relationship. So instead of selling, it becomes a story of liberation and friendship.
I'm not sure who Tony specifically is in this fanfiction without reading it. It could be an original character created by the author, or perhaps a reimagined version of a known character in a particular fictional universe.