Grief gift for visiting the person’s family - one year later

A close friend of mine (I’m 29/F) passed away last year and I traveled to see his family. I made them a photo album of his photography as a gift. I am traveling to see them again this year for a one year memorial sporting event. I haven’t seen them since and will be staying with them, so I want to bring them something but I’m not sure what. I have copies of my friend’s handwriting so I was thinking something engraved. I really don’t know though. I’m open to anything. Any advice is appreciated!