I'm bored - here is some of my workday I'm working on a permanent install that has some interactive displays - kind of like a Wonderworks or museum display. One of the displays has Matchbox size cars driving around on through an under floor diorama. First I built a protype of the roadway to test the mechanical and electrical components. The base of the roadway is particleboard melamine that has a groove cut into it for a roller chain to pull the cars. The blue plastic top covers most of the mecahnics and electrical parts. This is just the prototype so the colors will change.