I love r-maps too! And I love them even more with pictures. For online games we often use Google Draw, and update the map in real time (example from a Dungeon World hack in its early stages: https://docs.google.com/open?id=1kVqtmahtex3eiUhvaKG4eLiROP4AVGy3bW1RUacZpp0).

At conventions I bring lots of headshots I find interesting, and pick from them and glue them onto the map (example from a Drama System game, Colony Wars: https://mechanteanemone.wordpress.com/2013/10/09/colony-wars-relationship-map/).

In continuing tabletop series, players bring a picture of their choice.