Junior high school is basically teaching books, star magazines, audio products and so on.
High school students can sell lovers' supplies, and those who live on campus can sell phone cards and other slightly mature things.
If you are a college student, it will be wider. Couple items should account for the bulk. A little personality and some sporting goods, game cards. Both will do. But to see what college students there like best, it should be more beneficial for you to do a social survey first.
There used to be a junk collector near our school, who collected old household appliances such as old water heaters left behind by senior students and sold them to freshmen. Business seems good. Senior three students want to take this thing, but they can't take it away. If they sell it, they can still cook a meal for everyone. Many people will choose to sell. It depends on the place. Hmm. How interesting
; I wish you success!