If I were to make them something, I wouldn't want it displayed! Because I'd get embarrassed every time I looked at it, and also because that would mean other people would all see it, too.

Perfect reaction for me would probably.. handling the gift carefully, studying it for a moment, thanking, generic compliment and generic statement of intent (I'll take good care of it, I'll take it home, I'll keep it right here in my drawer), then putting it away carefully and continuing the session. Not too much attention to either the gift or a long conversation about why I wanted to give it.
Afterwards, I'd prefer them to not mention it specifically again, although I might like it if they were to casually do so - like, 'are you still drawing?' Or 'I remember when you gave me the drawing, you were also ..'. So mostly let me know they remember it, but not talking about it deeply.

But I don't think I'd give them anything. I gave my T homemade (gardenmade?) honey once when I saw her on her birthday, but that was different - it was small, a birthday gift, and not very personal.
Was debating a Christmas card for my pdoc.. didn't.
Also, I've found that T's seem to read a lot of stuff into normal behaviour displayed in session, and then want to analyse it. If you hand a neurologist chocolate in thanks, he'll be grateful and eat it. A T will want to talk about why you wanted to give him the chocolate.