Energy harnessing wearables are nothing new. We have already covered a bunch of shoes and other wearables projects that explore that idea. stephaniek26’s BiMA is a DIY project that involves building energy harnessing shoe attachments. They will harness mechanical energy as you walk and turn it into electricity.
BiMa requires USB connectors, battery, plywood, Piezoelectric transducers, and a few other parts to get started. Interesting project for students, researchers, and educators.