Katie Rearick / Beat Black (Sarah Norton)

Jewellery that provokes a gut reaction: these rings are made of silver, steel, citrine and, yes, gut. For the story behind her "Gnaw" series, visit Michigan's Katie Rearick.

Bonus link: these rings may be more eye-popping than gut-wrenching. "Opti" eyeball rings in polymer clay by Toronto's Beat Black (Sarah Norton).

Even more jewellery:

• Lillian Crowe (New York) - ribs & hearts


• Hannah Warner (UK) - skulls & coral


• Owlita (Oregon) - feather earrings


• &c. (Seattle) - vintage chains


• Mónica Gómez (Colombia) - contemporary silver