My book Emotional Design (correctly) gave the impression that I enjoy tea. But the result has been a surplus of riches: my readers provide far more suggestions of tea-brewing products than I can possibly evaluate, let alone use. But here are two, culled from the many suggestions.
The teapot I actually use is not one shown in the book. I use the bodum Chambord Teapot. Simple, elegant, easy to use, easy to clean.
Readers frequently suggest other teapots. One that seems especially attractive and functional is the "teashirt" by the Danish design store eva solo.
I haven't actually used this one, but the video on the store website is compelling.