This project takes a steady hand and some patience, but it's inexpensive and requires no special tools. It takes about an hour and a half of work, plus an overnight to dry. I made this project at TechShop San Francisco.
This shows the general zone of the Oakland/SF bay bridge toll plaza and it is AWESOME because it is a historical map. See how it's highways instead of 50 used to go all the way to SF (near the current 580 route), not stop in Sacramento like it does now.