I haven't given this T (or any previous T) a present for her birthday. But I don't know when her birthday is. And I don't get gifts from her. If I would get a gift from my T, then I would give her a present too. Your idea sounds nice.

I've only given my T (and only this T) a card when I quit therapy the first time. And when I'm done with this therapy, I'll give her a card again. She liked it the first time.
I wish I would get a card or just a simple letter from her. But she's good at keeping things seperate. She's just my T, nothing more.