Ring Pops are a sweet and fun treat that are sure to make your friends smile. Push Pops are another candy that kids love. These lollipops come in a tube, and you push the candy up as you eat it.

All trick-or-treaters can do is push the button and take the candy. It’s built around a cereal dispenser that’s modified to be cranked by a piece of round rod driven with a NEMA-17 stepper ...