I've seen those Tegan and they look just like brown sandwich bags (please excuse my ignorance if this is not so). If that is all they are, you should be able to buy them at the supermarket.

BTW Tegan, I had a look at your pages on your website, and we visit the same scrapping website LOL. I've downloaded that one too that you've used for 'Daddy's Girl'. I used it for a wedding pic. It's on Paige's website if you want a look, just follow the link.