Bitman project around your neck

The Bitman project consists of a necklace-type device that displays an animated character using simple building blocks, and it not only keeps those around you entertained it also features a clock that tells the time in phrases and a stock market sensitive plant that waters itself. This is a part sculpture, part product, and part toy device that is known as “Device Art”, enabling designers to create a user experience that has been crafted out with careful thought and guided by artistic vision. What are some of the other Device Art products that you know of?