He’s saving for college 25 cents at a time. For Firestone High School senior David Krichbaum, that means handfuls of peanut M&Ms and shiny quarters, a ton of sales pitches and more than 200 rejections, the Coshocton Tribune reports. This 17-year-old budding entrepreneur bought his first gum ball machine off Craigslist about 18 months ago “just for something to do. He spruced up the vintage coin machine with fresh paint, tinkered with the gears a bit and plopped it down inside A Wok, a popular Chinese restaurant in Montrose. Since then, David has added six more vending machines in spots around Akron. However, it wasn’t until he added a full-color “My College Fund” sign above the candy-filled globe that his business skyrocketed.