Well, if you want those chains, just type in 'acrylic chain' into etsy and you will find anything you might have dreamt of
They have a variety of colors and shapes and sizes so you can choose whichever you will like best and also you can see the prices. MayanSupplies has nice black skulls with pink bows that i find adorable
Generally, etsy is a great place to find any kinds of jewelry supplies especially for the Pastel Goth of Kawaii styles. I like Candy-Crystal-Designs (a shop on ebay) and I adore Bead-D-Lish-Us (also a store on ebay), if you want I can PM you the links with the stores
A good idea is to look for supplies with what you have in mind and then seeing if the seller has some more
Many Chinese sellers have free shipping so look for that too
And I'm pretty sure I've run into a store (if I remember correctly) in Munich (I think that) had also goth and kawaii things... I'll get back on that to you, I have to browse my links more carefully