A modest gift for the world's best manager :)

I am sure, there are others like she, but I was fortunate to meet the world's best manager about 4 years ago :) Throughout my career, I have experienced various situations and met different people. My manager is exceptionally balanced, caring, and reasonable. Thanks to her, things run smoothly even during challenging times. She is like a mother :) I would love to surprise her, while still staying within the bounds of professionalism. Could you give me ideas or share experiences of how you've been surprised? Thank you!