BotJunkie has assembled a post about Max Dean and Raffaello D'Andrea's "Robot Chair" which, in a stunning example of over-engineering, can rebuild itself when it is disassembled in a very specific way. Which is not to say there's anything wrong with it: as a research project it's actually very amusing.
This is the sort of thing I can imagine being created once we figure out how to reclaim all the base materials in a product and recreate products in our at-home maker box. Why have nano-bots build a chair when they can build a robot?
Zombie Chair Cannot Be Destroyed [BotJunkie.com]