Parting gift ideas

Hello! I am nearing the end of my nanny job and I want to start getting some ideas.

For the little girl who’s almost 2: I am planning on giving her a book with a note in it and a jellycat

For the parents though im not sure. They are having their second baby in May also. I was thinking a giftcard to a restaurant (just don’t know how much to put on it without it being weird) and then like a “free date night babysitting coupon”. And then a card thanking them for everything. I don’t want to do pictures or a photo album because they already print them out. And then do I get the baby something?