The "key" theme in jewelry has been pretty popular over the past year or so, connecting to the idea of using unusual objects, sometimes found objects, in jewelry designs.

But, keys have come a long way from the type Madonna used to wear as a single earring, baby! Check out this wonderful jewelry collection, called of course "Keys of Life," by jewelry designer Barbara Bixby (pictured).

Made of gold and encrusted with gemstones, these key style pendants are beautiful, showing that you can catch onto a trend but turn it around into something unique at the same time.