There is of course the Conical Coffin. that is circular and upright with a pointed bottom and a thread running from bottom to top, the benefit of this is instead of lowering a normal coffin by the Bearers, it is possible for all the Mourners to participate by taking hold of the cross levers they can all screw clockwise the Coffin into the ground. This does become a great help in Exhumations they just unscrew anticlockwise the Coffin back up.