I'm all for weird and self-depricating humor; I'd have the character throw darts at himself or a friend. Or someone very few people have a dart-throwing hatred towards, like Albert Einstein or Socrates. Actually a photo of any statue would be kinda funny. Again, weird humor
The older pot smokers would have there minds blown with that reference. "Dude, that guy is throwing darts at Darts," while the younger crowd would be saying, "Dude, why the hate for new Russian cars?"