Combine 3 liters Lemon Lime Soda and 12 drops Green Food Coloring in a large punch bowl and stir.
Add in 1 quart Rainbow Sherbet in scoops until the package is empty.
Add 18 of the 30 Gummy Worms to the punch bowl, reserving the rest for garnish when you serve each cup.
Use a ladle to transfer to each cup and serve.
Notes
Add a colored sugar syrup rim for an extra spooky look! Simply mix 1/2 cup of powdered sugar with a teaspoon or two of water and food coloring until smooth and not too runny.