I used sterling silver earwires, and 4mm silver-plated wire for the dangly sections.
Most of the green beads came from the pick-n-mix section of Viking Loom, which is one of the many reasons to visit the amazing city of York. They sell colour-themed bead mixes by weight, so you can either take a random scoop or pick out the ones you like best.
The square shell beads at the bottom (you can't see them that well in this picture, because they have annoyingly swizzled themselves to be side-on), are from PJ Beads, an online / mail order company which was recommended to me by a more experienced jewellery-making friend, Helen. They've recently updated their website, although the image quality is still much better in their print catalogue.
I miss my sister! I wish I was able to see her more. Like all three of my sisters she's an incredible person, and she always makes me smile when she's around. I'm going to see her next in a few weeks' time and I'm really looking forward to it.