Bodum double-wall thermo glass
While we where looking for new interior yesterday, I accidentally spotted a new kind of glass from the company Bodum, which I had not seen yet: a kind of thermo glass with insulating double-walls. I’m not sure how much it will help to keep your coffee or tea warm, as I’m not sure if the double-wall is filled with air, or contains a vacuum and given it has no cover, and thus loosing quite some energy (heat) on the top. But nonetheless, it looks quite nice and might still help to keep your drink warm and protect your fingers.
They are said to be mouth-blown, and thus slightly differ in form and height (while I find the top border a little uneven on all of them I saw).