Father-in-laws Death Anniversary! Help!

It'll be my Father-in-laws 11th death anniversary of the 9th of January. I know little to nothing about him other than what little my husband told me about him (pretty much nothing, unless I ask about him or tell my husband that I would like to know more about him, he doesn't really talk about him).

This will be the first death anniversary of my Father-in-laws that my husband won't be able to go to his grave for or spend with his mum, since he moved countries for me.

I've personally never lost anyone so I couldn't possibly begin to imagine how it feels to lose someone, especially a parent, and I want to do something nice for my husband to show him I care, but I just have no clue as to what to do/say.

I feel slightly guilty because he moved countries for me and I would've liked to visit my Father-in-laws grave with him but we can't as he won't be able to get time off work and we can't afford it. I know he misses him a lot because the only times I've seen him cry is when he's missed him, e.g. our wedding day, when we found out I was pregnant and recently when he mentioned that his dad will never be able to meet our baby once he's born.

Long story short, if anyone has any suggestions I would really be grateful, thank you!