I would love to be able to pick up the little grave stones that contain your inventory loot when you die. It would be cool if once they were empty, you could pick them up into your inventory, and they'd display the name, time/date of death, and the biome where it happened as little hover-over info or tooltip or whatever.
this way, you could haul them back to your home base if you felt like it and make a nice little graveyard to commemorate the most honorable fallen vikings. would be neat if once placed as a commemorative stone, you could add some of your own text as well that would be readable like all the rune stone text.
im sure there's a mod that lets you build grave markers, but my idea is more specifically that the marker would have the in-game data related to your death attached to the unique object. it could be placed back down as a different model or something, but mostly I just want the metadata of the time/place of death to be permanently associated.