Wine glasses

In the past 3 weeks I've watched the first 4 seasons. I've noticed that they always have some pretty awesome wine glasses. It's less common to see a "normal' looking wine glass than it is to see one with some kind of adornment or pattern printed on it. Has anyone else noticed this and/or found where you can buy them? It would be nice to get a list going or something. I'll start grabbing screenshots as I see them show up.