The Amazing World of Gumball
By accident I found a gumball machine if you turned the dial really slow it would drop the gumball, then you could dial it back just enough so the next gumball would drop into the tumbler bits, then slowly dial forward again until it drops, etc.
Got about 20 of them and stopped when I realized that I really didn’t want to chew that much cheap gum…
Story credit: Reddit / Kifenstein