Sure! 🙂 I admit, I don't know a whole lot about them, but I've seen some Vitro bags with Anacortes labels that have some really neat looking patch types in them. (I've also heard other collectors say Vitro dabbled in patch marbles while they were in Anacortes). One of the color combinations seems to be a windex blue base with a white patch, like this one. I've also seen emerald green with white. Additionally, I've seen some examples containing opaque brown with a creamy off-white.