Instead of spending $52.50 to replace radio handsets with exposed screws -- a shock hazard for the operator -- Marines can now use a 3D-printed clip that costs 50 cents, according to a service news release. Lance Cpl. Frederick Sattler won first prize in the First Quarter Commanding General's Innovation Challenge, "a Shark Tank-style board where Marines and Sailors can present ideas to improve their unit, the base, or the Marine Corps as a whole," for a simple design that keeps Marines from having to dispose of the damaged handsets. Read more on Military.com.