The gift for the teacher is actually quite exquisite. You need to determine the teacher's age range, the actual situation you get along with, the teacher's usual personality characteristics and so on.

Personally, I think it is more troublesome for the teacher to send a better thermos cup, which is full of your blessings to the teacher. Or flowers, pen containers, etc.

Send commemorative gifts, which can be customized personalized gifts, such as crystal ornaments, with the teacher's name on them, and words of blessing to the teacher to show your heart.

I hope my answer is helpful to you.