The Funeral
A simple ceremony where you take the corpse of a player, but it one of the following grave types, and are awarded a little LP.
-Pyre
The easy grave. Made out of blocks, boards, and branches, you build a pyre, put a body on it, and light it with a lit torch. After it finishes burning, there is nothing but ash, so you can reuse the ground. Possibly make it so that anyone who is nearby when it is lit gets LP as well as the lighter.
-Grave
The hard grave. Made out of stones, boards, and lots of stamina. Put the body in a coffin with some belongings, put it in the grave, fill it with soil (which is added to your inventory while building), and it leaves behind a gravestone, or a cairn (pile of rocks), or whatever. Then you can pray at the grave for a some LP.
-Grave Robbing
Add it to the skills, or just use theft as the skill. Dig up a grave, crack open the coffin, and take whatever you want from inside. You could even rebury it if you want. Probably leave a scent for theft or desecration.
-Skeletons
We already have them. Make it useful. Break em up into Bones and a Skull. Then make things like a Skull-on-a-Stick to decorate your evil liars.