I think the gift is appropriate. I've only ever given my T two things - one relatively inexpensive and the other handmade, but she accepted both. I think it's nice that you got your T such a meaningful little token whilst you were on your travels. If I were you I would definitely take it - even in the (I believe unlikely) event she has to refuse it, I bet she'll really appreciate the gesture, and to hear the meaning behind it

Ts are probably more likely to refuse expensive gifts, or in the event that gift giving becomes too habitual. From what I've read, the occasional trinket is generally okay.