MILFORD, Ohio -- A group of students at Milford High School are taking their class project to the next level, creating a prosthetic arm using a 3-D printer.

The prosthetic, for a little girl named Hope, cost just $30 to make -- and it's doing the work of similar units that cost thousands of dollars.

The project was made possible at Great Oaks' career campus through the Project Lead the Way initiative.

"This was just a natural fit when I saw how we could connect a design to a real person," teacher Peter Leeper said. "And so it just seemed like a natural platform for kids to try out some of the engineering skills that they've been developing."

The students even customized the arm's colors to Hope's favorites. The intersection of science and basic humanity isn't lost on Jack Brown, a senior at Milford High School.

"I'd like to think this would make her more outgoing, and more comfortable with who she is," he said.

Watch the video above to see more about the students' work.