Imagination Station’s first Invention Convention will be held Saturday, May 2, from 10 a.m. to 5 p.m., with an awards ceremony at 2 p.m. in the KeyBank Discovery Theater. When you were a kid, what inventions did you wish were real? A robot that did your homework, or a trash can that could take itself out? Inventions just like these are coming to life during the first annual Northwest Ohio Inv...