Lay a large piece of parchment paper on a work surface. Insert a wooden stick into each apple at the stem end.
Combine the sugar, corn syrup and 1 cup water in a saucepan fitted with a candy thermometer. Bring to a boil and cook until it registers 302 degrees F. Remove from the heat and allow the bubbles to subside, about 2 minutes. Add 1 drop of soft gel red food coloring and the entire bottle of cinnamon candy flavoring oil, then stir well. Again, allow the bubbles to subside.
Hold an apple by the stick and tilt the pan so the candy pools to one side. Dip the apple and swirl to fully coat, then transfer to the parchment. Repeat with 3 more apples. Stir in enough soft gel blue food coloring to the remaining candy to create a deep purple. Dip the remaining apples in the same manner. Let the apples stand until the candy is hardened, about 5 minutes.
For the marshmallow web, microwave the mini marshmallows in a microwave-safe bowl for 30 seconds at 100 percent power. Stir until the marshmallows lose their shape. Let cool slightly, then pick up some of the marshmallow between your thumb and forefinger. Use your other thumb and forefinger to stretch the marshmallow into strands, and quickly wrap the stretchy strands around the apples. Continue with the remaining marshmallows and apples.