Use Spacebrew to generate a forest of trees! We set up a physical button, an arduino, and a processing sketch to send events to Spacebrew, and another computer to use those events to draw a forest. See here for the project in action: http://vine.co/v/b6mzJvXaU7A single_tree.pde generates a different tree on mouse click forest.pde generates a different forest of trees on mouse click spacebrew_forest.pde adds a new tree when pressing a physical button. Written with Processing & Spacebrew. Tree-drawing code based on this OpenProcessing sketch: http://www.openprocessing.org/sketch/1249 http://docs.spacebrew.cc