I was thinking someone could click a sign, like a shop, but instead of getting items, get access to a [access] "object'. So that people could give access to other players for certain amounts of time for certain amounts of rupees. This would probably mostly be used for games [Parkour etc.].
This is a neat idea. I wonder how hard it would be to implement. I see the good side of it for sure, but I'm not sure if it would be hard as items have number codes (I believe) and those numbers could interfere with the time. If this makes sense.