I like your telephone! I used to have a pink one that I got from a yard sale for $1. I threw it away during a long-distance moving several years ago and will regret it forever
About old zini, I guess different people would use it for different meanings. The kind of "old" I like is the clay is "aged" under certain conditions for a long time (traditionally should be at least 1 year and several years would be pretty good). It's different from just letting the clay sit in the warehouse for several years, because technically speaking, all clay has been sitting underground for millions of years. The aging process requires professional control of conditions. This will make the clay look more "alive" without the dry feeling. It's also said to help with the longevity of the teapot, but it's hard to test whether this is true.
Here is a duan ni teapot I have that's made of clay aged for more than 10 years (but I wonder if the number of years was really counted). When the photo was taken, the teapot was pretty much new, but it didn't look or feel as dry as most new teapots. http://2.bp.blogspot.com/_Tjz7-dt8PhM/TQ5RC_DmGdI/AAAAAAAABYI/90-OBiaT1FM/s1600/%25E6%25AE%25B5%25E6%25B3%25A5%25E5%258C%258F%25E7%2593%259C.JPG