A Nut$ bank is a great idea, but don't make more work for yourself tho?
As for the mascot, what about a squirrel with a top hat and monocle for a snooty banker?

Should the PS Park have it's own separate thread?
I guess that would make sense, because then all the park posts will be in one single thread, and not cluttering up the main thread where they can be hard to find sometimes?
And it means the results can be posted to show the beginning of a new days park time?
But again, be careful you don't end up giving yourself more work than you can handle?
Maybe have a back-up park organiser, who can run it on the days you aren't able to make it?