That doesn’t mean your hanko has to be boring, though, as a wide variety of fonts and designs are readily recognised as legal signatures, including the Pokémon Pon inkan released by seal maker Hankos late last year.
According to Hankos, the wooden and horn seals are accepted as legal signatures by major banks like Sumitomo Mitsui, Mizuho, Mitsubishi UFJ, Risona, and Yucho.
Pokémon Pon personal seals can be ordered online through the Hankos store on either Rakuten or Yahoo!