Teapot

なぜ，Computer Graphicsでteapotなのかを調べてみた．
The History of The Teapot
http://www.sjbaker.org/teapot/

特に，Why is it so Popular?の項に注目

Well, back in the early days, there were no 3D modelling packages and everything was digitized by hand or sketched on graph paper and the numbers typed in using a text editor. If you were working on texture mapping algorithms, ray tracing or some such work, then any source of free data was welcome.

Aside from that, people have pointed out that it is a useful object to test with. It's instantly recognisable, it has complex topology, it self-shadows, there are hidden surface issues, it has both convex and concave surfaces - as well as 'saddle points'. It doesn't take much storage space - it's rumoured that some of the early pioneers of computer graphics could type in the teapot from memory.

触覚におけるteapotって何になりうるでしょうか．