I think this is what you need:
http://www.12bead.com/jewelry-findin...m?cPath=59_60&
http://www.12bead.com/jewelry-findin...m?cPath=59_60&
Other cool things on the site, too.
The site is in Dutch, click the British flag on the top/right of the page, or use Google translate.
I have also seen them on Etsy, I believe. Sorry, no link.
Happy shopping, Julie