Effective evaluation requires the selection of appropriate methods to balance rigor and feasibility. Evaluation methods involving surveys and interviews are familiar; lesser known are methods involving the use of participant-generated artifacts. In this article, I share my process for developing an evaluation framework to assess learning outcomes by using artifacts designed and built by young people in 4-H Junk Drawer Robotics programs. Findings demonstrated the potential value of using participant-generated artifacts for outcome evaluation. The process might be replicated in other Extension programs.