Coat a rimmed baking sheet with nonstick cooking spray.
Combine the marshmallows and butter in a large nonstick pot over medium-low heat and cook for 5 minutes, or until melted and smooth.
Remove the pot from the heat and add one drop at a time each of red and yellow food color until the mixture reaches the desired orange hue. Add the cereal; stir until combined.
Coat your hands with nonstick cooking spray then shape the cereal mixture into 8 same-sized balls; place on a baking sheet and let stand for 15 minutes.
Press a Tootsie Roll into the top of each to form a stem. Using candies and/or decorating gel, make a jack-o'-lantern face on each crispy rice ball. Serve immediately, or cover loosely until ready to serve.
By Jodi from Aurora, CO