Re: THE WHO & THE BUY.
James Potter definitely came and spent money because hECK YES. A lot of his money went to fireworks. But he also bought other things. I'm too lazy to think of everything he'd buy right now. Definitely some of the trick candies.
Sam Winchester came, because he's secretly an HP fanboy, and trying to hide it. He also bought stuff, mostly stuff that could be more useful than prank-y, like Instant Darkness powder and other stuff he can use in hunting, but again, I'm lazy.
Matt Holt came because he was curious, and probably ended up also buying something, but idk what.
I'm not sure if any of the rest of mine came. Probably just those 3.