Preheat the oven to 350 degrees. Spray a 9x12-inch baking dish with cooking spray.
Place the cream cheese in the bowl of an electric mixer and beat until smooth. Add 1 cup sugar, lemon juice, and vanilla. Beat well. Add the eggs, one at a time, beating well after each addition. Tint the mixture orange with a few drops of yellow and red food coloring. Bake for 25 minutes or until almost set.
Mix ¾ cup sour cream with 3 tablespoons sugar. Spread on top of the cheesecake, leaving a border of about ½ inch. Bake for another 5 minutes. Let cool, then refrigerate for at least 2 hours or up to 48 hours.
Tint ⅓ cup sour cream orange with red and yellow food coloring. Place in a small plastic food storage bag and snip off the tip.
Decorate the cheesecake by inserting cinnamon chips into the top. Squeeze the orange-tinted sour cream over the top so that it looks like cheese. Sprinkle with some mini chocolate chips and chopped gummies or jelly beans. Garnish with gummy worms.