You don't want to lose items, but can't/wont enable keepInventory? Or you tired of same-type gravestone/corpse mods, which are boring?
If that the case, then this mod for YOU.
Welcome to Corpse, But Better Mod!
A mod, heavly inspired by Don't Starve death mechanic, more spefically - corpse.
What is this mod about? Well... It's about corpses of course! Whenever you die skeleton corpse will appear on your death position, keeping all your stuff (but no exp). But it's not just boring corpse, that just lays on ground. No, corpse can have multiple different poses, and it depends on the way you died. This add an ability to tell in which situation this player died and from who/what, and just in general it looks nicer, than just horizontally laying corpse.
Examples:

All Versions
+ Add VersionCorpses can now only be broken by hand
Corpses now have visual effect when breaking them
Corpses now void proof
Items with Curse of Vanishing now properly disappear (controlled by gamerule corpseButBetterRespectVanish)
Fixed duplication / other bugs in multiplayer, when multiple players die in same time
Added compatibillity with Curios
Added new poses from slime, magma cube and anvil.
Added mod logo
Corpses now have proper names
Some minor changes in code
Changed death pose, when you die from mobs