I got another stamp while in Nagoya. This one is from Atsuta Jingu, which is the second most important shinto shrine in Japan because it enshrines the Kusanagi no tsurugi, which is one of the three Imperial symbols (this is obviously important).
I expected my shuin to be much more elaborate. Instead, it just has a stamp, the date, and two characters.
...not that I'm complaining.
93 more stamps and I can become a shinto priest!