From Robosquare.org, here's a paper model of a robot called "ifbot". ifbot is an advance communication robot that can understand and speak human language (only Japanese language for now), it can also move by itself, avoid obstacles, detect steps, take pictures and send them wirelessly via the internet, and last but not the least, it can recognize upto ten persons from their voices and faces and adapt to the emotional tones of the speaker. It is marketed in Japan as a domestic communication robot primarily for elderly people to provide conversation and companionship. This paper model is in PDF format, the pattern comes in two pages and one page for instructions.
