I love the great colors and interesting shapes on these pendants. The one with a heart is created using a polymer clay adaptation of mokume gane, an old metal-working technique. To make it, differently-colored layers of polymer clay were stacked and impressed with various objects and then thin slices were removed to reveal the pattern obtained inside of the stack. I am only guessing that the other two were made using the same technique or a variation of it.
You can find these beauties in Empty Nest Creations on Etsy.com.