Once again, a shot taken at the Grand Valley State University Idema Library. The group study rooms have these sliding glass doors with blue straws cut into probably 1-inch lengths and put in between the panes of glass. They offer a decent amount of privacy while still letting in tons of natural light.
When you have the door open, doubled up, as it were, it creates this really neat look that amplifies how the tubes refract light. Like you see here.