SPORE 1.1 - by Swamp (Doug Easterly & Matt Kenyon)

A market-driven, self-sustaining ecosystem for a rubber tree plant. The life of the plant is in the hands of the home improvement company Home Depot. In tune with the condition of the company's stocks, the plant is watered accordingly. If the company does well, so does the plant. If not, it might die. The whole setup is controlled by a computer, which checks the stocks once in a while (wireless).
http://swamp.nu/projects/spore1.html

Wooden Mirror

Wooden
Mirror

by Daniel Rozin

Instead of pixels on a screen Rozin uses small blocks of wood

Border
patrol

by David Rokeby and Paul Garrin

Scary installation imitating a border that you can't help getting
too close to. On screens you see cameras seeking to aim at your head and
body. When the target is found shots are heard.