He... just... nevermind.
My sister recently visited China and brought this back with her. Apparently it's called a pee-baby, and when you put him in water the appropriate temperature for tea, he pees.
Unfortunately, I couldn't convince him to do so, even though I did make some very delicious, perfectly-temperatured tea. Maybe he's shy.
Also, I never had much desire to visit China (Japan, on the other hand...) until I found out how much she loved it. Hmm. We shall see. With South Africa out of the picture, there are so many more doors opening. They're just opening about a year from now, instead of in August.