The diversity of items that find their way via household wastes offered for recycling shows almost no limit as those who work in recycling sheds will testify.
But in California, workers have been shocked to discover a mummified human head among recyclables.
The unidentified body part was found at the California Waste Solutions in West Oakland.
Cadaver dogs were searching the site for any additional body parts and police say they are treating the case as a murder.