Replicating Robots aren't completely science fiction. These guys at Cornell built these worm like block robots that gracefully connect to each other and create duplicates of themselves. Well at least in concept- the software is acting like it's using raw materials, and they say it's not overtly difficult to get it to work on the micro levels using multiple materials to recreate itself.
Check out the movie of this in action. It's wild.
I'm just afraid that they will use this technology for future Furby related toys...
So, if you have money and aren't interested in building creepy replicating Furbies, go write them a check.
[ Link via John Champlin. Thanks John! ]