You don’t even have to do much work. A naked body in a ditch in the middle of rocky desert terrain will get picked clean by animals (vultures, coyotes, etc) quickly. A naked body in gator infested swamps…well, enough said. A naked body in a cheap, metal, weighed down dog kennel and dropped at sea will get picked clean in no time and the kennel will corrode a d disintegrate soon after. The hard part is always moving the body unnoticed.