The Drop Stop helps save lives. Weird inventions that are more than just a silly toy really have something going for them. The Drop Stop helps prevent things falling in between the gap in your car between the car seat and center console. Marc and his friend Jeffrey, the creators of Drop Stop, began with a sponge and an old sock that had a few slits in it. Now, it’s an invention that has made them rich, while also saving the lives of many people (Shark Tank Blog).