In India tea is more popular than coffee. If you visit India you will never find a place without a tea stall. An Indian adventure would be incomplete without the experience of sipping tea at an open-air tea stall, and the gratifying, childlike pleasure that comes with tossing your cup and hearing the pops you watch it hit the ground and break into bits.
All over India, potters spin these small cups out of river clay, which is then sun-dried, half-baked in an open fire and delivered to local tea stalls. We find the gritty taste enhances the character of the tea. One could even argue that the minerals in the dirt provide the added benefit of a daily multi-mineral supplement.
So, instead of using a traditional coffee cup, a clay cup is much better to use.