You know, I heard a “fun” idea a couple of weeks ago: You show up at a funeral dressed as the grim reaper.
I don’t think the timing would be right, however. ;_)
But what might be fun would be to walk through a cemetery that was easily view-able from a popular road, and wear the outfit complete with sickle, stopping occasionally at a random grave site.
Sounds like a "fun" way to get your ass kicked.