Container:
Found ceramic basin

Contents:
Fragments of clay pigeons
Shotgun shell casing
Rusted clay pigeon launcher
Skateboard wheel
Broken 9v PSU
Bike spanner
Rusted metal gate hinge
Lip gloss
Sheep leg bones
Slate fragments
Twigs
Moss
Notes:
All materials scavenged from the village of Allenheads and surrounding countryside.

A very musical sounding box - the resonant frequencies of the objects and the basin producing what sounds like a major third.