Hi Spicy, special days are always hard for me, I tend to disappear into myself, remembering. It's not yet two years for me.
Memory boxes... well my mother in law had the most beautiful one I had ever seen, and it was so simple. She took a small plain card board box, cut of three of the top flaps, taped the bottom, and then she took all of her favorite cards from my father in law, and used the plain elmers glue and glued them to the box, and then took other cards she had saved from her children and filled in the spaces. Once that was done she painted elmers glue all over the cards, gave it a nice finish and made the box no longer look like a box. She then made a latch to be able to be tied shut, she used a small hinge and ribbon. Inside she had smaller boxes that she covered with some material off some of her favorite clothes that her husband had worn, and inside those boxes she had pictures, jewelry, special things of all kinds. It was so unique, so very special. Gave her so much comfort for the years she was alive after he died.
I haven't done anything like that, but I do have a small box that I keep the really special things in that I don't want to loose. I was given a very small memory box at my husbands funeral, and if I can figure out how to post a picture I would be happy to post it. It isn't very big but does hold all the cards etc from the funeral. Some widows that I have helped have taken T-shirts, shirts, etc and have made memory quilts.
I think some times we get so caught up with the sadness that we forget we can be creative.
Craft stores have boxes with all kinds of pretty things that you can do yourself, and like Lulav said you can work on one while recovering.
Wow this is long, hope it makes sense.
Will be praying that the surgery goes well and you have a speedy recovery.