Which kids’ gumball machine is best? Gumball machines are fun, affordable ways to add a bit of color and nostalgia to your home. Simply drop in a coin, turn the knob and out comes a delicious gumball.

One of the first vending machines most of us ever encountered involved a penny, a knob, and a colorful piece of gum. At one time, gumball machines could be found almost everywhere, from grocery stores ...