A while ago I was thinking about a rent-a-sefer type of thing.
Basically going to the big yeshivas at the end of the zman and getting all the popular newish leftover seforim that get left there. Then renting out each Sefer for a dollar a month.
Obviously have the person leave a cc number in case of damage...
Might be an idea just I guess don't charge the dollar each month. As far as I know I don't think there's such a thing yet.