Flowers

Bloomstyle
Sells pendants that have a real pressed flower in between two pieces of glass.
http://www.bloomstyle.com/

Real Flowers Jewelry
Pins, pendants, bracelets, accessories and gifts made with preserved flowers.
http://www.realflowerjewelry.com/

Thallo Fowering Jewels
Floral, organic looking jewelry. [Requires Flash]
http://www.thallo.com/