Ichabod

Neat idea for a prop? The coffined remains of a corpse in school teacher attire, dust and cobwebs. Very old. Headless with a petrified cracked jack o'lantern on its shoulders - with a gaping hole large enough to see that the corpse has been decapitated.

Image source.

Probably the neighboring town found the body, down by the Hudson. And buried him as-is.