We often don't give a second thought to the color of everyday items. Of course a pencil is yellow! Well, yes, a candy cane should be red and white. But these things didn't always have these telltale colors. Some were changed - to be easier marketed, or for safety reasons. Sometimes the iconic color was an accident during the creation process, or simply the easiest thing people had on hand. So if you've ever wondered why barns are red or tennis balls are yellow (or green?), this video is for you!