Prepare the meatballs in the oven per the package directions.
Warm the King's Hawaiian Original Hawaiian Sweet Rolls and marinara sauce.
Set-up the ingredients and tools with a few examples of what they may create.
Provide an assortment of kooky cookie cutters and tell them their "monster" doesn't have to make sense they can create something brand new. Encourage them to use their imaginations and have fun. Use fun shaped cookie cutters to cut shapes in the cheese slices.
Using 2 meatballs per slider drizzle with marinara sauce then allow each person to create their own personalized monster sliders using the toppings provided to create eyes, ears, hair, beards and mustaches. Secure with toothpicks.
Take lots of pictures and give a prize to the most creative monster of the night. Then advise everyone not to forget to remove the toothpicks, eat and enjoy!