Im sure you'll get more, but to start.
I see caged mummy skeletons (papermache with cheese cloth or single ply paper towels)
stacked barrels for columns, or cut in half to have glowing embers (orange light strings and foam spray insulation) inside -that would make for easy storage too
check pinterest and youtube as well as older threads here for more technical how to.
looks like a great start to decorating
one man's junk is another's treasure..