What is a nice gift we can give a friend who is helping with major home remodeling?

My husband and I would like to give a close friend a nice gift for helping us with a major home remodeling project. He and his wife are recently married and he has probably spent about 60 hours working at our house. I would like it to be a nice gift for both of them since his wife has allowed him to spend so much time at our house!

First Suggestion:

I guess give her a personalized jewelry with name if you budget it around 80-150$.

I mean you do not have to say lots of words. But it will show all your feeling to them

Second Suggestion:

Give the couple a spa gift certificate for both. For relaxing time together.