FORLIFE Curve Teapot with Infuser: The extra-fine tea infuser gives you a immaculate even steep every time, and enables you to steep fine loose-leaf teas such as Rooibos tea to large whole-leaf teas like Oolong tea.
China Yixing Teapot-Di Cao Qing-Wen Dan-CHINA tea shop CHINESE tea set and YiXing Zisha pots
Yixing Teapot Set - Mark T.
Three Color Blossom Yixing Tea Set
These vary according to seller and season. I think that this general style is the prettiest type of yixing out there.