If you think about it, being considered "cool" was not that hard when you were a kid. All you had to do was bring in the right snacks.Most kids were picky when it came to what candy and chocolate they liked best, but no one would say no if you offered them a piece of gum. Here are 10 types of chewing gum that made everyone befriend you on the school yard. 1. Do you remember how you'd have competitions on who could blow the biggest bubble? Amazon2. "Juice gum" has been around since the '80s, and no kid