Máquinas Vending

What Should I Put In My Gumball Vending Machine?

I have a gumball machine that you can put quarters in for exchange of a gumball. Instead of gumballs I was wondering if anyone had any suggestions as to what else to put in there? I was maybe thinking about those hard fruit candies as well…what are they called? Anyways, this machine is not for me, I am putting in a cleaners where the demographic is comprised primarily of adults. If you are an adult, what is your favorite type of candy you would want when you walked inside this cleaners? Would it be gumballs or candy?