I looked for a children's book that had an especially meaningful message; all three of my girls had different personalities and I found books that captured each one or reminded me of the relationship that they had with the teacher. Then I wrote a letter to the teacher and taped it inside the book, thanking her for the time and effort she spent helping my child to grow and develop and expressing my sincere gratitude for taking such wonderful care of my baby so that I could do what I needed to do without worry.
That always went over pretty well, wasn't too expensive and made me feel really good to be able to recognize the teacher in a personal way. Even if it made both of us cry like babies!
ETA: and you could have your daughter draw a picture inside the cover and sign her name or put her handprints inside.
[This message edited by meaniemouse at 10:49 PM, July 17th (Thursday)]