I need advice 😛 (don’t exactly know where to post this)

So I was kicked out of my house when I was 11 weeks pregnant and my boyfriends (baby daddy) parents took me in and gave me a place to live so we could save up money to buy a house. I’m now 33 weeks and we are moving next week to our house. The thing is I want to get them a gift and card to show them how thankful I am, us living rent free and taking me in and giving me a roof over my head and a lot less stress and treating me like their own family. I just don’t know what can signify how important they’ve been to me and repay them for all they have done. So that being said any ideas??