Grease a 12-cup muffin pan. Set aside.

Add butter to a large pot, and melt over medium heat.

Add marshmallows to the pot, and cook over medium-low heat until fully melted, stirring often to avoid burning. Remove from heat.

Add red and yellow food coloring until the desired shade of orange is achieved. 

Add rice krispie cereal to the pot, and stir with a greased rubber spatula until fully combined.

Using the greased rubber spatula, fill each muffin cup to the top, pressing down firmly to compress the rice krispies.

Place muffin pan in refrigerator for 30 minutes, or until set.

Cut the Kit-Kat bars into three equal pieces.

Take each rice krispie treat out, and use your hands to gently round out the edges and form a “pumpkin” shape.

Take a butter knife carve out a small hole in the top of each pumpkin, and insert a kit-kat piece into the hole. 

Draw a face on each pumpkin with the writing gel.