What to put in "will you be my bridesmaid" box? Hawaiian themed wedding? - things to put on a wedding card

I would ask my friends, a bridesmaid in my wedding special. I decided that a gift box to be prompted with a card to send to my maid of honor.

Our marriage is the subject of tropical Hawaii. Ideas for small gifts to go in the box? I thought of things like chocolate macadamia nuts, etc. Thanks!