Senior Airman Benjamin Amirault, 28th Civil Engineer Squadron structures technician, uses a bandsaw to remove extra poly-metal from a crosswalk sign at Ellsworth Air Force Base, S.D., Aug. 15, 2013. The CES sign shop creates a wide variety of signs including traffic, building, street, safety, and special event signs. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)