I used copper wire, which I gave a lovely antique patina with some Liver of Sulphur which is a special jewellery making solution. I sat in the garden with my polishing cloth and buffed up the raised areas. That makes it look nice and twiggy!
The other pendant uses wire wrapping in a different style. I love the shades of green in the freshwater pearls.
More photos of both these necklaces are on my website: http://www.beadizzy.com/