How did you commemorate your miscarriage?

I had a missed miscarriage at 9 weeks. I have one ultrasound picture of the baby when it was alive. It was only six weeks so it doesn’t look like much, but I can’t bring myself to toss it. I also have a handful of positive tests.. my husband suggested putting those items in a box and burying it. I don’t know how I feel about that. Maybe create a small box to keep those items together so I can go back and look at them when I feel like it? Is that weird?