I love the idea of a once-a-month game-wide thing. I'll give some thought to some possible events, and if anybody else has any ideas, by all means let me know!
I have no specific ideas, but would love to throw one of my characters at one of yours. Didn't we throw around the idea a while ago of Crow running into Odin's ravens? And speaking of Odin, given his past mental instability and Mania's - y'know, embodiment of mental instability, perhaps we could play around with something involving the two of them?