Our own Dan Seifert has spent years convincing the Verge staff of the AeroPress coffee brewing supremacy. The $30 plastic-and-rubber plunger system has inspired a world brewing championship and a number of modifications, some of which are hotly debated among coffee enthusiasts. But before the AeroPress, inventor Alan Adler had already made a career of improving classic designs: hes also behind the Aerobie flying ring, a stable, long-distance cousin of the Frisbee. …