When I sought for a nice glas carafe at ebay to put my water into I stumbled over these special ones. They are called "Kalte Ente" (cold duck), presumably because of the shape. I was lucky abd got one for a good price. It only has to get cleaned.
For daily use I got another carafe which is not so fancy but also nice. I like both pieces and am happy to add a bit more style to my homeware.