The challenge schools face when creating a science, technology, engineering and mathematics (STEM) program is how to incorporate the "E" into the curriculum. The author's school was meeting the National (U. K.) Curriculum Science, Technology and Maths learning objectives, so how could they justify adding another subject into the mix without frustrating the teachers with more work. In this article, she describes the path the school chose to integrate engineering into the STEM curriculum. They decided to take a multi-faceted approach in order to build momentum and interest; setting up tinkering tables in select classrooms, holding staff and parent workshops, plus an engineering-themed Science week. They also networked with real-world engineers, and participated in the Robot Orchestra maker project, for which the students created a robotic musical instrument from Lego and recycled materials. The author also discusses the best practices and lessons learned the school experienced in the process.