Japanese New Year Postcards
I lived in Tokyo for a year and a half until the big earthquake and during that time I took to the Japanese tradition of sending out a new years postcard (nengajo, 年賀状), (And painting them with real paint, not digital!). They usually feature the Asian zodiac animal of that year. The post office holds everyone’s new years postcards and magically delivers them all on January 1st. The skinny vertical says the year (in a special year numbering system) and the character below it is the special character for that animal they use only for year of the that animal (a different one is used in normal times). The square basically says Happy New Year.