In a large pot, melt butter over low heat.

Add marshmallows and stir until fully melted and smooth.

Mix in orange food coloring and optional vanilla extract.

Remove from heat and stir in Rice Krispies cereal until well coated.

Let mixture cool slightly until safe to handle.

Grease hands with cooking spray or butter.

Scoop and shape mixture into round pumpkin balls.

Insert a pretzel stick into the top of each ball as a stem.

Decorate with green icing or candy leaves.

Place on parchment paper and let set before serving.