In a large saucepan, melt the butter on low heat.

Stir in the marshmallows and mix until they melt completely and blend with the butter.

Take the pot off the heat. Add a few drops of yellow food coloring, mixing it well, then add red food coloring one drop at a time until you achieve the pumpkin color you like.

Fold in the Rice Krispies, mixing until they are evenly coated.

Coat your hands with cooking oil or melted butter generously. Roll the mixture into small balls and place them on parchment paper, adding more oil or butter to your hands as needed.

While they are still warm, press a Mini Rolo on top of each pumpkin for the stem and place a green M&M next to it for the leaf.

Let them cool completely until they firm up.