A pinch of table salt in this miniature shotgun packs enough power to kill flies and other insects within a 3-foot range. Creator Lorenzo Maggiore was hoping to raise enough to produce at least one small run of the Bug-A-Salt; by the time the Indiegogo campaign ended, buyers had bought more than 21,000. "It was very strange, surreal," said Maggiore. Bug-A-Salt was a one-man operation at the time, so Maggiore hired a team to help him meet the demand. The device started shipping a month later, and is now on sale at BugaSalt.com.