Jenna Mills, center, helps her daughter Gracie Mills, a pediatric cancer patient, to try out the life-sized Operation game at Mercy Children's Hospital in St. Louis. Mercy Child Life Specialist Quienton Townsend, at left, is assisting. A team of volunteers from five different organizations gave 160 hours to build the game table. Kids attempt to use makeshift tweezers to deftly pluck items from cavities in the body of a cartoon patient. When the tweezers touch the sides of the holes, the table lights up and makes a fun laughing sound.