The Wowwee Tribot is an autonomous robot from WowWee with a nice feature set, including omni directional wheels, voice synthesis and several sensors. Wowwee Tribot really cool design and easy to disassemble; lots of sensors, a servo thing, IR leds / IR decoders, sockets, power transistors, battery box, etc. etc. etc., three geared motor units with encoders.

Following is several links that can help you in your assembly and dissemble of the Tribot Robot:

    http://forums.parallax.com/discussion/143908/triwowbot-hacking-a-propeller-into-wowwee-products . . . . . . Parallax Discussion Forums
    https://en.wikiversity.org/wiki/User:1sfoerster/enes100/Tri-BotHack . . . . . . Wikiversity Tri-BotHack
    http://www.robocommunity.com/article/15419/hacking-the-wowwee-rs-tri-bot-remote-see-whats-inside . . . . . . WowWee RS Tri-bot Remote
    http://www.robocommunity.com/forum/thread/16434/tri-bot-broken . . . . . . WowWee RS Tri-bot RS Broken
    http://neuromorphs.net/ws2008/wiki/roboQuadTribot . . . . . . WowWee Tri-bot - neuromorphs.com
    http://myrobothouse.blogspot.com/2011/12/tribot-is-autonomous-robot-from-wowwee.html . . . . . . Robot House - WowWee TriBot