I need some help!(and really only TheO members can help!)

Just read on and you'll understand why!
(or skip to the bold on bottom)
well, Homecoming is coming up in my school, and we always decorate a part of the hallway in the upcoming week of it.

now, here's my...well, not dilemma, but issue,
You see, 2 of my friends, Holly and Britta, are in charge of part of the Junior(That's our class) hallway~
Now, these are some of the nicest, oldest friends I have. as well as some of the BEST dancers I know(I've been friends with Britta since preschool, since my grandma and her mom worked together, and ALL of Holly's siblings went to my moms preschool.)
So, anyway, the theme this year(for us) is EPCOT
and their section? Japan.
(so now you get a sense why I asked you guys)

now here;s the thing,
Britta asked me to do a poster board for them, (cause she knows I love Japan's culture, and I'm halfway decent at drawing)
and it needs to be japanese themed, and I have 2 weeks, (How can I say no to one of my best friends?)
now, I was thinking of doing something like Vocaloid, and maybe Rin/Len in their "Revolution" outfits, but I got stuck, so here comes my question...

What reminds you of Japan? be it symbols, idols, ANYTHING! I just need you to tell me!

End