i'm in your conscience
I think they should have a festival in Slateport about the Weather Trio. Slateport seems like the perfect place for a festival! But they could have events and sales on secret base decor. Events like contests of course. And half off vitamins! And some sort of reenactment of the weather trio and how Rayquaza calmed the quarreling Kyogre and Groudon. Ohhh this sounds fun, now I want to teleport into my game, haha.