Over low heat in a medium stockpot, melt the butter. Add the marshmallows and stir until well combined. Remove from the heat and stir in the rice cereal until well coated.
Press the mixture into the pan using a piece of wax paper to help you get it even. Let the treats cool completely in the pan.
Remove from the pan in one big sheet and place on a cutting board. Cut out the shapes using a pumpkin cookie cutter.
In a small bowl, melt about half a bag of candy melts according to the directions on the bag. Once the chocolate is smooth, dip one end of a lollipop stick or paper straw into the chocolate, then gently press it into the bottom of the pumpkin shape. Drizzle chocolate over the pumpkin (if desired).
Recipe by A Mom's Take at https://www.amomstake.com/pumpkin-pops-rice-crispy-treats-halloween/