Jessica de Lotz / Erdem Özden

If you're always forgetting to turn the lights off before you leave the house, maybe the solution is to bring the switch with you. "Until the Daybreak" movable light switch ring by England's Jessica de Lotz, who was inspired by the contents of a purse she picked up at an antique market — visit her site for the story.

Bonus link: if you'd rather wear the lights than the switch, check out these "stop" and "go" rings from Turkish designer Erdem Özden.

Even more jewellery:

• Lauren Kalman (Ohio) - conceptual art


• Frank and Easy (Japan) - antique style


• Pi Jewelry (New York) - spoon handles


• Ele Keats (Los Angeles) - dainty gold


• Anke Kanning (Germany) - metal & gems