For the Mid-Autumn Festival, you can give each of your roommates a nice luminous pillow. They are all girls, so they naturally like these small gifts. The price is not expensive, and students can afford them. It is said that students are the richest, and of course it makes sense. They are all spending their parents' money. If they can go out to work, they can also upgrade the gifts. In short, don't waste your parents' money.
In fact, you are all students, and giving too many gifts is also a burden. You might as well learn some better handicrafts, which are fashionable and thoughtful. In this materialistic age, only handicrafts can keep their style unchanged and their thoughts unchanged. Your friends will also like the handmade gifts you give, and maybe they will collect them as collections.
If you study in another place during the Mid-Autumn Festival and don't have time to go home, you can celebrate the festival together. After calling your parents in your hometown, you can have a reunion dinner together. After dinner, have some entertainment, sing a song, etc. It is also very comfortable and everyone will be very happy.