I enjoyed the recent anime series Mawaru Penguindrum. This is a map of the inter-character relationships, as best as I could make them out. Spoilers, naturally.
I did my best to duplicate the subway-map aesthetic that appeared in the series. The series (and the actual Tokyo Metro) uses the font Frutiger for its roman-character signage. Sadly, I don't have Frutiger but Futura seemed closer to it than Helvetica.
I'm very happy with the Postscript code I wrote to create this. I have a big dictionary of "people" that looks like this:
% name x y firstname secondname type /Person [4.5 7.5 (Living) (Human) 0] /Erased [6.5 7.5 (Erased) (or Killed) 1] /Nonhuman [6.5 5.5 (Nonhuman) (Entity) 2]
And a list of connections that looks like this:
% start startlabel endlabel end type [/Person (BLOOD RELATIONSHIP) dup /Erased 1] [/Person (OTHER CONNECTION) dup /Nonhuman 0]
Followed by code that iterates through both and draws everything appropriately. Complicated connections like the one in the lower right just have a list of [x y] pairs after the connection type. Hopefully I'll get a chance to reuse this code someday.