Originally Posted by
cowie
Showed the stewardess this on my NRT-SIN flight two nights ago. She went away and came back mid-flight with all of the coasters except Tea Time. Later, she came back with two more not depicted above: a gasshozukuri farmhouse in Shirakawa-go and what looks like the Togetsu bridge in Kyoto's Arashiyama. It felt like cheating, but I'm very happy with my haul.
You just have to tell people about the "secret" coasters that I've been teasing above

But you still have more than just Tea Time to collect