In September, Popular Science_ attended World Maker Faire at the New York Hall of Science. We saw giant robots, tiny Tesla coils, and musical instruments made out of anything you can imagine. Check out some of the coolest projects with us!_

Just outside of Boston, an intrepid group of humans is building a giant hexapod robot. Nicknamed Stompy, the behemoth will be large enough to crush cars beneath its feet. But before they finish Stompy (and presumably use him to take over the world), the members of Artisans Asylum came to Maker Faire to show off some of their less destructive projects…like a smoke-ring vortex cannon made out of a trashcan.