Change the "location" of the graveyard. What I mean by that is instead of doing a regular graveyard add moss and ropes to make it a pirate graveyard. Could also try adding hay/straw barrels and a scarecrow to turn it into a farmhouse graveyard. Many others you could do that I can't think off the top of my head. I find "location" changes the easiest because they only require a few small things to make it effective.
Happy Haunting!
Happy Haunting!