Unwitting Donor / Cadaver Exchange

From ashes to ashes
From corpse to cadaver
For the dearly departed
Ignorance is bliss

Interchangeable cadaveric rests
Necrotic
Appendages replaced

Forced mass necrosis
Sudden expiration by chance
Incidental extinguishment
Referred to by ingrates as murder

Interchangeable cadaveric rests
Necrotic
Appendages replaced

Bequeathing one stiff with the waste of another
Pustular flotsam passed on with much glee
Broken down giblets dispossessed
Harmonic allocation of purulent viscous