I made these stationary sets for my daughter's Nihongo teachers for Xmas last year. It uses the same template as the one mentioned below from PTI. I also used their Teacher's Apple stamp set and the Just Rite Stampers small letter set to write out the teachers' names.
This just shows some of the cards/envelopes I stamped last year for my kids' teachers. Sorry, this picture might be a little blurry.
I also made these Hello Kitty notepads for the Nihongo teachers. I used some Japanese washi paper that I had for many many years. The Hello Kittys are die cut using Sizzix sizzlits. I bought my daughter the Hello Kitty sidekick but I think I may use it more than she does.