Im not that much of a Star Wars fan, but the one charactor that I did enjoy above all the other characters in the movies was R2-D2. For some reason I
thought he was the actual hero of the films. Always ready willing and able to do his bit, R2-D2 could always manage to save everyone.
If for some reason you have been living on Mars, under a rock, with your fingers in your ears for the last 35 years, R2-D2 is an Astromech Droid from
the Star Wars Series...

A resourceful, spunky and adventurous astromech droid, R2-D2 has saved the day time and again. His little .96-meter tall frame is packed with all
sorts of tool-tipped appendages that make him a great starship mechanic and computer interface specialist. It's his bravery, however, that has made
him an invaluable asset to his owners and friends.
Source:
Star Wars: Databank
So aparently there is a club called the
R2-D2 Builders Group Whos perpose is to re create this lovable little
Astromech.
Robotics being at the state they are today as you can see it's quite possible to create this little guy. Who knows, with the right amount of hard
drives, CPUs, RAM, and programming it might be possible to build one that wouldnt need it's radio controller anymore.
Just something fun I thought I would share.