I'd actually like to see the first one. Absolutely screams "Papa Nurgle." As for the second, I'd recommend combining together the Hexblade's Curse and Bardic Music into one action, adding new twinned effects and having the entire thing either run off of Perform (Oratory) or Intimidate.
NineThePuma, with statements like that make me want to call you "comrade." Here's hoping our ideas aren't too terribly similar.
I've always thought of it as being very much as a "first come, first serve" basis where whoever posts their ideas gets "dibs." For good or for ill, obviously.