ideas for judge

Hello all - We are finalizing adoption next and are looking for a few ideas as to what we can give (ideally, we'd like to make something) to the judge, with whom we've built a relationship over the years as a keepsake/memento? A little background: we adopted our first two children in 2020 and since then, we've taken into care since birth, two more biological siblings. The judge that will be presiding over the adoption next week is the same judge that's been involved in their case since the beginning, which we think is kind of special and would like to commemorate that. However, what does one give a judge? We certainly don't want to simply go out and buy something, but we definitely want to do something. Any ideas/thoughts would be welcomed. Thank you in advance.