http://www.robo-garage.com/robo/tatikoma.htmlofficial homepage. From Kyoto university.
You can order one. It takes 5 months to produce. Price: contact them(you know what that means).
and darnit, I need to hire a Japanese translator 
script for part 1:
-Nice to meet you, I am Tachikoma. I was built by mister Takahashi. I will show you all my cool functions. (walks)(turns)(speaks something I cant understand because the different voice) That is it. My self-introction is finished. BYE BYE!!!!!!
script for part 2:
-Hello everyone! That is about the new GitS DVD: It is SAC: Solid State Society. Watch it.
(in one word: Advertisement)
(Sorry for the bad translations. Even though I can speak 4 different languages, each one is independent from the other. I am a horrible translator.)
But I still like Evangelion the most.