The Pandora's Box series from Juniper Designs all feature keyhole designs combined with pearls and semiprecious stones. The Hope Necklace shown here is a brass keyhole is highlighted by a faceted rose quartz and hanging from an 18" 14k gold-fill chain. Through the month of October, 50% of the proceeds of Hope (it sells for $85) will be donated to the Susan G. Komen Breast Foundation. The entire line features a wide variety of antique brass keyholes ranging from the simple to the baroque. Just beware of men who offer to have the key.

Juniper Designs has a great blog full of design inspiration and sneak peeks of upcoming products. They also have a variety of other designs that incorporate found items such as chandelier prisms, vintage belt buckles and shoe clips.