If you enjoyed the Wall-E Disney movie that was launched back in 2008 and directed by Andrew Stanton about a small robot called Wall-E or Waste Allocation Load Lifter Earth-class that was left on earth to tidy up a mess left by its human inhabitants.
You might be interested in this cute Lego and XT autonomous Wall-E robot that has been created and is capable of moving around thanks to its Mindstorms NXT with rechargeable pack.
Other components used in the building include 3 x Lego NXT Servo Motors, 4 x Lego PowerFonctions motors, 2 x PF IR receiver, 1 x UltraSonic sensor, 1 x Sound sensor, 1 x InfraRed link sensor, (HiTechnic) 1 x NXTservo module and 1 x mini RC servo. Check out the video below to see it in action more about the Lego build.
Source: New Launches