I was lucky enough to win a $100 gift certificate to Whitney English paper. I bought both my daughters teachers stationary with their names on them. I also bought mini clipboards at the $1 store & then some good gourmet chocolate.
This is the final product, the Whitney English paper came in this pretty gift box with pink bow, so I just stuck the chocolate under the bow with a card & it was good to go. My 5th grade teachers seemed extremely happy with it.
Even if you didn't go with the expensive Whitney English paper, you could something similar as a fun teacher gift.