considering columbariums

Tiffy's death anniversary approaches again, and I'm wishing we had a space we could visit when we are thinking about her, maybe want to talk to her. I always envision something like a columbarium, such as this one, but one that isn't sealed. Something we can add pieces of, memories of, Tiffy as we are able. I don't think this is what they're used for, though.

I don't know why I continue to be bothered by this. I don't like the usual standard American fare of memorials or funerals. So what do I want?

Closure, obviously.
Not gonna happen in this family, though.