A recycling coffin. Or rather I should say, "earth friendly".
Mind you, they do not recommend cremation. It apparently caused 'pollution'. But what they don't tell you is that all those nasty embalming fluids your body gets pumped full of when you are dead, prevents you from rotting at a natural pace.
Hence, what could of taken the earth to do it's job in a matter of days to weeks on you, can take up to several months to even years with the aid of embalming chemicals.