Stan Sakai's long-running ninja rabbit comic, "Usagi Yojimbo," has now reached the quarter century mark, and Dark Horse Comics is celebrating the 25th anniversary by teaming up with LA clothing company the Hundreds for two exclusive "Usagi Yojimbo" t-shirts.

The series, whose staying power earned it a 2009 Eisner Award nomination for Best Continuing Series, recently released a standalone graphic novel, "Usagi Yojimbo: Yokai," for anyone who wants to jump on the samurai bunny train. Sakai also will also be doing a signing this Saturday at the Rosewood location of the Hundreds in LA, if you happen to be in the neighborhood.