YOU GET THREE.
That's what the signs posted all over this enormous shopping mall say, anyway. The signs are impossible to miss. They're posted in every store, on every escalator, and even in the bathrooms. They're on the gates to the rides in the indoor amusement park and taped to the glass in the aquarium. Those three words appear over and over, standing as some kind of invitation to the dreamers…or is it a warning?
It could mean three of anything, really. The mall is empty aside from the dreamers, no shop clerks or attraction attendants to clarify the rules, nor crowds of shoppers to lead by example. Could it be three items from the shops? Three items from each shop? Or maybe it means three soft pretzels. It could even mean three sharks. It probably doesn't mean three sharks. No one knows!
Sooner or later, though, someone is bound to figure it out by accident. Everyone who finds themselves in this dream will get three wishes to do with what they please. They may find themselves a little more inclined than usual to phrase their desires in I wish statements, but there's no real indication until it happens that that's what they're supposed to do. Surely nothing can go wrong with that.
[OOC: Standard dream party rules apply: you and/or your character don't need to be a member of the community in order to participate, and characters will remember or forget the events of the dream at their players' discretion. Characters may make any wishes they like and have those wishes granted, but the effects of potentially game-breaking wishes (ones that would alter the setting of the entire dream, for instance) will be limited to the threads in which those wishes are made.]