This weekend, many of us will be enjoying fireworks as we celebrate the Fourth of July ?from the safety of a public park with professionals handling all those explosives. But our guest Bill Gurstelle believes that the best fireworks are the ones you make at home. He’s the author of Absinthe & Flamethrowers: Projects and Ruminations on the Art of Living Dangerously and Backyard Ballistics: Build Potato Cannons, Paper Match Rockets, Cincinnati Fire Kites, Tennis Ball Mortars, and More Dynamite Devices.