I went to two headshops around me and neither had them. The second one I stopped is just a everything general store owned by this lady in here late 20's early thirties. She said she stopped getting them because of so many complaints. According to her when they get the slightest wet, they burn like shit. Among other things. But yeah, no where around here seems to carry them.

As for what it is made from, I think it is a certain cell from a plant. I'm not positive on that though.